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1.
Artículo en Inglés | MEDLINE | ID: mdl-38747851

RESUMEN

Microsporum canis, one of the most widespread dermatophytes worldwide, is a zoonotic microorganism that transmits infection from reservoirs such as cats and dogs to humans. This microorganism is associated with Tinea corporis and other clinical manifestations; however, few studies have used genetic surveillance to determine and characterize the process of zoonotic transmission. In this study, we show a clear example of zoonotic transmission from a cat to an intrafamilial environment, where it caused Tinea corporis by infection with M. canis. Molecular characterization using the b-tubulin gene and Random Amplified Polymorphic DNA analysis made it possible to determine that the six isolates of M. canis obtained in this study belonged to the same genetic variant or clone responsible for reservoir-reservoir or reservoir-human transmission.


Asunto(s)
Enfermedades de los Gatos , Microsporum , Tiña , Zoonosis , Microsporum/aislamiento & purificación , Microsporum/genética , Microsporum/clasificación , Gatos/microbiología , Animales , Tiña/microbiología , Tiña/transmisión , Tiña/veterinaria , Enfermedades de los Gatos/microbiología , Enfermedades de los Gatos/transmisión , Zoonosis/microbiología , Zoonosis/transmisión , Mascotas/microbiología , Humanos , Perros , Técnica del ADN Polimorfo Amplificado Aleatorio , Masculino , Femenino , Enfermedades de los Perros/microbiología , Enfermedades de los Perros/transmisión , ADN de Hongos/genética
2.
Sci Rep ; 14(1): 11260, 2024 05 17.
Artículo en Inglés | MEDLINE | ID: mdl-38755240

RESUMEN

Β-lactamases-producing Escherichia coli are a widely distributed source of antimicrobial resistance (AMR), for animals and humans. Little is known about the sensitivity profile and genetic characteristics of E. coli strains isolated from domestic cats. We report a cross-sectional study that evaluated E. coli strains isolated from domestic cats in Panama. For this study the following antibiotics were analyzed: ampicillin, amoxicillin-clavulanate cefepime, cefotaxime, cefoxitin, ceftazidime, aztreonam, imipenem, gentamicin, kanamycin, streptomycin, tetracycline, ciprofloxacin, nalidixic acid, trimethoprim-sulfamethoxazole, and chloramphenicol. The data obtained were classified as resistant, intermediate, or sensitive. MDR strains were established when the strain presented resistance to at least one antibiotic from three or more antimicrobial classes. Forty-eight E. coli isolates were obtained, of which 80% presented resistance to at least one of the antibiotics analyzed, while only 20% were sensitive to all (p = 0.0001). The most common resistance was to gentamicin (58%). Twenty-nine percent were identified as multidrug-resistant isolates and 4% with extended spectrum beta-lactamase phenotype. The genes blaTEM (39%), blaMOX(16%), blaACC (16%) and blaEBC (8%) were detected. Plasmid-mediated resistance qnrB (25%) and qnrA (13%) are reported. The most frequent sequence types (STs) being ST399 and we reported 5 new STs. Our results suggest that in intestinal strains of E. coli isolated from domestic cats there is a high frequency of AMR.


Asunto(s)
Antibacterianos , Farmacorresistencia Bacteriana Múltiple , Escherichia coli , Pruebas de Sensibilidad Microbiana , Animales , Gatos/microbiología , Escherichia coli/genética , Escherichia coli/efectos de los fármacos , Escherichia coli/aislamiento & purificación , Farmacorresistencia Bacteriana Múltiple/genética , Antibacterianos/farmacología , Fenotipo , beta-Lactamasas/genética , Estudios Transversales , Infecciones por Escherichia coli/microbiología , Infecciones por Escherichia coli/veterinaria , Variación Genética
3.
Acta Trop ; 255: 107237, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38723739

RESUMEN

The surge in domestic cat adoption across India, particularly the rising preference for high-pedigree cats, coupled with environmental factors, has resulted in increased incidence of dermatophytosis among feline companions. Despite this growing concern, there is a noticeable scarcity of studies in India delving into the etiological factors contributing to dermatophytosis in cats. This disease is a threat to animal health and carries public health significance, given that cats are recognized reservoir hosts for Microsporum canis, a common dermatophyte affecting humans and animals. This study endeavours to identify the dermatophytes affecting cats and establish a standardized therapeutic regimen while accounting for the local stigma surrounding the regular bathing of cats. The study involved the examination of 82 cats presenting dermatological lesions, when subjected to cultural examination in dermatophyte test medium revealed 36 afflicted with dermatophytes. Isolates were presumptively identified by staining using lactophenol cotton blue, Chicago sky blue 6B, and Calcofluor white stains. Molecular-level identification of the isolates was confirmed through PCR-RFLP, amplifying the Internal Transcribed Spacer Sequence of 16 s rDNA, followed by restriction digestion using the Mva1 enzyme. Among the thirty-six isolates, 29 were identified as M. canis, while the remaining 7 were M. gypseum. The cases were categorized into five groups and treated with Lime Sulphur dip, 4 % chlorhexidine shampoo, a shampoo containing 2 % miconazole and 4 % chlorhexidine, oral itraconazole alone, and a combination of oral itraconazole with lime-Sulphur dip. Statistical analysis revealed that the response was notably swifter with lime Sulphur dip when considering only topical therapy. Moreover, the mycological cure was most expeditious when combining Lime Sulphur dip with oral itraconazole. These findings underscore the pivotal role of topical biocides in feline dermatophytosis treatment, potentially reducing the reliance on specific antifungals and thereby contributing to the mitigation of antimicrobial resistance emergence.


Asunto(s)
Antifúngicos , Enfermedades de los Gatos , Microsporum , Tiña , Gatos/microbiología , Animales , Enfermedades de los Gatos/microbiología , Enfermedades de los Gatos/tratamiento farmacológico , India/epidemiología , Tiña/veterinaria , Tiña/microbiología , Tiña/tratamiento farmacológico , Tiña/epidemiología , Antifúngicos/uso terapéutico , Microsporum/aislamiento & purificación , Microsporum/genética , Masculino , Femenino , Arthrodermataceae/aislamiento & purificación , Arthrodermataceae/genética , Arthrodermataceae/clasificación , Arthrodermataceae/efectos de los fármacos , Itraconazol/uso terapéutico , Reacción en Cadena de la Polimerasa , Polimorfismo de Longitud del Fragmento de Restricción , ADN de Hongos/genética , ADN Espaciador Ribosómico/genética
4.
Comp Immunol Microbiol Infect Dis ; 109: 102185, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38663213

RESUMEN

To evaluate the frequency of Acinetobacter spp., belonging to both Acinetobacter calcoaceticus-baumannii (ACB) and non-ACB complex, and their antibiotic resistance profiles in veterinary medicine, a three-year (2020-2022) retrospective study was carried out on sick companion animals. Epidemiological data from different clinical canine, feline, and equine samples, were acquired. For each strain, MALDI-TOF MS identification and susceptibility to a panel of 11 antibiotics, by Kirby-Bauer and E-test methods, were performed. Out of 628 bacteriological examinations, 2.5% resulted positive for strains belonging to Acinetobacter genus. Frequencies of 2.3%, 1.9%, and 3% were obtained from both in-visiting and hospitalized dogs, cats, and horses, respectively. Members of ACB-complex accounted for 50% of isolates. Since all strains resulted susceptible to aminoglycosides and polymyxins, no pandrug-resistant (PDR) species were recorded. While 12.5% A. baumannii resulted extensively-drug resistant (XDR), a higher percentage of multidrug-resistant strains was recorded among non-ACB strains (35.5%) than ACB strains (25%). Susceptibility was observed in the same percentage in both groups (62.5%). All ACB strains confirmed their intrinsic resistances. Non-ACB species showed lower resistances against antipseudomonal penicillins plus beta-lactamase inhibitors (P=0.1306), III generation cephalosporins (P=0.0547), and tetracyclines (P=0.0209) than ACB species. Carbapenem-resistance was observed for XDR A. baumannii (12.5%) and, in particular for MDR non-ACB complex members (25%). To our knowledge, A. lactucae represents the first description in two sick dogs in Italy. Furthermore, our results emphasize the role of non-ACB-complex species as important zoonotic pathogens, which could be reservoirs of clinically relevant resistance profiles.


Asunto(s)
Infecciones por Acinetobacter , Acinetobacter baumannii , Antibacterianos , Enfermedades de los Gatos , Enfermedades de los Perros , Farmacorresistencia Bacteriana Múltiple , Pruebas de Sensibilidad Microbiana , Animales , Estudios Retrospectivos , Perros , Gatos/microbiología , Infecciones por Acinetobacter/veterinaria , Infecciones por Acinetobacter/microbiología , Infecciones por Acinetobacter/epidemiología , Infecciones por Acinetobacter/tratamiento farmacológico , Caballos/microbiología , Antibacterianos/farmacología , Acinetobacter baumannii/efectos de los fármacos , Acinetobacter baumannii/genética , Enfermedades de los Perros/microbiología , Enfermedades de los Perros/tratamiento farmacológico , Enfermedades de los Gatos/microbiología , Enfermedades de los Gatos/tratamiento farmacológico , Mascotas/microbiología , Acinetobacter calcoaceticus/efectos de los fármacos , Acinetobacter calcoaceticus/genética , Enfermedades de los Caballos/microbiología , Enfermedades de los Caballos/tratamiento farmacológico
5.
Res Vet Sci ; 172: 105248, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38554547

RESUMEN

Methicillin resistant Staphylococcus aureus (MRSA) represents a worrying example of antimicrobial resistance, and it is essential to acquire new information to monitor the spread and limit it further diffusion. This study aimed to characterise 22 MRSA isolates from horses, dogs, cats, and their human handlers focusing on spa typing. In the analysis of the sequences obtained, the spa type is "unknown" (unidentified) and all the sequences except one had repeats previously not known in all databases potentially indicating new spa-repeats. This could possibly indicate either permanent import of novel spa types or in-house microevolution of spa repeats.


Asunto(s)
Staphylococcus aureus Resistente a Meticilina , Infecciones Estafilocócicas , Animales , Staphylococcus aureus Resistente a Meticilina/genética , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Caballos/microbiología , Perros/microbiología , Gatos/microbiología , Humanos , Infecciones Estafilocócicas/veterinaria , Infecciones Estafilocócicas/microbiología , Enfermedades de los Caballos/microbiología , Enfermedades de los Gatos/microbiología , Enfermedades de los Perros/microbiología
6.
Euro Surveill ; 27(44)2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-36330821

RESUMEN

BackgroundThe emergence of colistin resistance is a One Health antimicrobial resistance challenge worldwide. The close contact between companion animals and humans creates opportunities for transmission and dissemination of colistin-resistant bacteria.AimTo detect potential animal reservoirs of colistin-resistant Escherichia coli and investigate the possible sharing of these bacteria between dogs, cats and their cohabiting humans in the community in Lisbon, Portugal.MethodsA prospective longitudinal study was performed from 2018 to 2020. Faecal samples from dogs and cats either healthy or diagnosed with a skin and soft tissue or urinary tract infection, and their cohabiting humans were screened for the presence of colistin-resistant E. coli. All isolates were tested by broth microdilution against colistin and 12 other antimicrobials. Colistin-resistant isolates were screened for 30 resistance genes, including plasmid-mediated colistin resistance genes (mcr-1 to mcr-9), and typed by multilocus sequence typing. Genetic relatedness between animal and human isolates was analysed by whole genome sequencing.ResultsColistin-resistant E. coli strains harbouring the mcr-1 gene were recovered from faecal samples of companion animals (8/102; 7.8%) and humans (4/125; 3.2%). No difference between control and infection group was detected. Indistinguishable multidrug-resistant E. coli ST744 strains harbouring the mcr-1 gene were found in humans and their dogs in two households.ConclusionsThe identification of identical E. coli strains containing the plasmid-mediated mcr-1 gene in companion animals and humans in daily close contact is of concern. These results demonstrate the importance of the animal-human unit as possible disseminators of clinically important resistance genes in the community setting.


Asunto(s)
Infecciones por Escherichia coli , Proteínas de Escherichia coli , Animales , Gatos/microbiología , Perros/microbiología , Humanos , Antibacterianos/farmacología , Colistina/farmacología , Farmacorresistencia Bacteriana/genética , Escherichia coli , Infecciones por Escherichia coli/epidemiología , Infecciones por Escherichia coli/veterinaria , Infecciones por Escherichia coli/microbiología , Proteínas de Escherichia coli/genética , Estudios Longitudinales , Pruebas de Sensibilidad Microbiana , Plásmidos/genética , Portugal/epidemiología , Estudios Prospectivos
7.
PLoS Negl Trop Dis ; 16(2): e0010181, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35143510

RESUMEN

BACKGROUND: Anthrax is a disease that affects humans and animals. In Ethiopia, anthrax is a reportable disease and assumed to be endemic, although laboratory confirmation has not been routinely performed until recently. We describe the findings from the investigation of two outbreaks in Amhara region. METHODS: Following reports of suspected outbreaks in Wag Hamra zone (Outbreak 1) and South Gondar zone (Outbreak 2), multi-sectoral teams involving both animal and public health officials were deployed to investigate and establish control programs. A suspect case was defined as: sudden death with rapid bloating or bleeding from orifice(s) with unclotted blood (animals); and signs compatible with cutaneous, ingestion, or inhalation anthrax ≤7 days after exposure to a suspect animal (humans). Suspect human cases were interviewed using a standard questionnaire. Samples were collected from humans with suspected anthrax (Outbreak 1 and Outbreak 2) as well as dried meat of suspect animal cases (Outbreak 2). A case was confirmed if a positive test was returned using real-time polymerase chain reaction (qPCR). RESULTS: In Outbreak 1, a total of 49 cows died due to suspected anthrax and 22 humans developed symptoms consistent with cutaneous anthrax (40% attack rate), two of whom died due to suspected ingestion anthrax. Three people were confirmed to have anthrax by qPCR. In Outbreak 2, anthrax was suspected to have caused the deaths of two livestock animals and one human. Subsequent investigation revealed 18 suspected cases of cutaneous anthrax in humans (27% attack rate). None of the 12 human samples collected tested positive, however, a swab taken from the dried meat of one animal case (goat) was positive by qPCR. CONCLUSION: We report the first qPCR-confirmed outbreaks of anthrax in Ethiopia. Both outbreaks were controlled through active case finding, carcass management, ring vaccination of livestock, training of health professionals and outreach with livestock owners. Human and animal health authorities should work together using a One Health approach to improve case reporting and vaccine coverage.


Asunto(s)
Carbunco/microbiología , Carbunco/veterinaria , Bacillus anthracis/genética , Adolescente , Adulto , Anciano , Animales , Carbunco/diagnóstico , Carbunco/epidemiología , Bacillus anthracis/clasificación , Bacillus anthracis/aislamiento & purificación , Gatos/microbiología , Bovinos/microbiología , Niño , Brotes de Enfermedades , Perros/microbiología , Etiopía/epidemiología , Femenino , Cabras/microbiología , Humanos , Ganado/microbiología , Masculino , Carne/microbiología , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa , Adulto Joven
8.
J Med Microbiol ; 71(2)2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35156609

RESUMEN

Introduction. Antimicrobial resistance (AMR) is a One Health issue concerning humans, animals and the environment and a unified One Health approach is required to contain this problematic issue. Dogs and cats are popular pet animals and are known to carry many bacterial pathogens that are of public health importance, including Salmonella. However, data on AMR in companion animals is limited.Gap statement. Scant AMR data from bacteria originating from companion animals limits an accurate assessment of the impacts of pet-animal-related AMR on public health.Purpose. This study aimed to phenotypically and genetically investigate AMR in Salmonella isolated from pet dogs and cats in Thailand.Methodology. Salmonella enterica were isolated from pet dogs (n=159) and cats (n=19) in Thailand between 2016 and 2019. All isolates were serotyped. Phenotypic and genotypic antimicrobial resistance was examined. PCR-based replicon typing, replicon sequence typing and plasmid multilocus sequence typing were conducted to characterize plasmids.Results. Seventy-seven serovars were identified, with serovars Weltevreden (9.6%) and Stockholm (9.0%) the most common. Most of the isolates (34.3%) were multidrug-resistant. The serovar Stockholm was an ESBL-producer and carried the ß-lactamase genes bla TEM-1 and bla CTX-M-55. The plasmid-mediated quinolone resistance (PMQR) gene, qnrS, was also detected (10.1%). Class 1 integrons carrying the dfrA12-aadA2 cassette array were most frequent (45.9%). Five plasmid replicon types as IncA/C (0.6%), N (1.1%), IncFIIA (28.7%), IncHI1 (2.2%), and IncI1 (3.4%) were identified. Based on the pMLST typing scheme (n=9), plasmids were assigned into five different STs including IncA/C-ST6 (n=1), IncH1-ST16 (n=4), IncI1-ST3 (n=1), IncI1-ST60 (n=1) and IncI1-ST136 (n=1). The ST 16 of IncHI1 plasmid was a novel plasmid ST. Subtyping F-type plasmids using the RST scheme (n=9) revealed four different combinations of replicons including S1:A-:B- (n=4), S1:A-:B22 (n=2), S3:A-:B- (n=1) and S-:A-:B47 (n=1).Conclusions. Our findings highlight the role of clinically healthy household dogs and cats as carriers of AMR Salmonella strains with different R plasmid. The implementation of AMR phenotypes instigation and genotypic monitoring and surveillance programmes in companion animals are imperative as integral components of the One Health framework.


Asunto(s)
Portador Sano/veterinaria , Gatos , Perros , Farmacorresistencia Bacteriana Múltiple , Salmonella enterica , Salmonella , Animales , Antibacterianos/farmacología , Gatos/microbiología , Perros/microbiología , Pruebas de Sensibilidad Microbiana , Plásmidos/genética , Factores R , Salmonella/efectos de los fármacos , Salmonella enterica/efectos de los fármacos , Salmonella enterica/genética , Tailandia/epidemiología , beta-Lactamasas/genética
9.
Elife ; 102021 10 19.
Artículo en Inglés | MEDLINE | ID: mdl-34664551

RESUMEN

Methicillin-resistant Staphylococcus pseudintermedius (MRSP) is an important emerging zoonotic pathogen that causes severe skin infections. To combat infections from drug-resistant bacteria, the transplantation of commensal antimicrobial bacteria as a therapeutic has shown clinical promise. We screened a collection of diverse staphylococcus species from domestic dogs and cats for antimicrobial activity against MRSP. A unique strain (S. felis C4) was isolated from feline skin that inhibited MRSP and multiple gram-positive pathogens. Whole genome sequencing and mass spectrometry revealed several secreted antimicrobials including a thiopeptide bacteriocin micrococcin P1 and phenol-soluble modulin beta (PSMß) peptides that exhibited antimicrobial and anti-inflammatory activity. Fluorescence and electron microscopy revealed that S. felis antimicrobials inhibited translation and disrupted bacterial but not eukaryotic cell membranes. Competition experiments in mice showed that S. felis significantly reduced MRSP skin colonization and an antimicrobial extract from S. felis significantly reduced necrotic skin injury from MRSP infection. These findings indicate a feline commensal bacterium that could be utilized in bacteriotherapy against difficult-to-treat animal and human skin infections.


Asunto(s)
Antibacterianos/farmacología , Antiinfecciosos/farmacología , Bacteriocinas/farmacología , Farmacorresistencia Bacteriana , Infecciones Estafilocócicas/veterinaria , Staphylococcus/química , Staphylococcus/efectos de los fármacos , Animales , Antibacterianos/química , Antiinfecciosos/química , Antiinflamatorios/química , Antiinflamatorios/farmacología , Bacteriocinas/química , Gatos/microbiología , Espectrometría de Masas , Proteínas Citotóxicas Formadoras de Poros/química , Proteínas Citotóxicas Formadoras de Poros/farmacología , Infecciones Estafilocócicas/microbiología , Infecciones Estafilocócicas/prevención & control , Secuenciación Completa del Genoma
10.
Vet Ophthalmol ; 24(5): 455-459, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34402572

RESUMEN

OBJECTIVE: This study was performed to determine the conjunctival microbiota of Persian cats with and without nasolacrimal duct obstruction (NLDO). ANIMALS STUDIED: Twenty-five Persian cats: 15 with bilateral NLDO (Group A) and 10 with no NLDO (Group B). PROCEDURES: All fifty eyes were assessed. Sterile swab applicators were used for the collection of specimens, which were cultured. PCR was performed on conjunctival swab and blood samples for the detection of Mycoplasma spp. and feline herpesvirus 1(FHV-1), respectively. RESULTS: FHV-1 was detected in two cats in Group A. Twelve eyes from Group A and four from Group B were Mycoplasma spp. positive based on the PCR results. Moreover, fungal culture was positive in six eyes from Group A and three eyes from Group B. The dominant fungus isolated was Aspergillus spp. (6 out of 11 fungal isolates). Other isolated fungi were Alternaria spp. and Cladosporidium spp. Twenty-three eyes had positive bacterial culture in Group A, while twelve eyes were positive in Group B. The most commonly isolated bacteria were Staphylococcus epidermidis (15 out of 38 bacterial isolates). ß-hemolytic Streptococcus spp., Corynebacterium spp., and Staphylococcus aureus were isolated in similar proportions in both groups. Escherichia coli was also present in both groups. CONCLUSIONS: Results of this study revealed same isolated fungal and bacterial spp. and in similar proportions in Persian cats with and without NLDO.


Asunto(s)
Enfermedades de los Gatos/microbiología , Gatos/microbiología , Conjuntiva/microbiología , Obstrucción del Conducto Lagrimal/veterinaria , Microbiota , Animales , Bacterias/aislamiento & purificación , Femenino , Hongos/aislamiento & purificación , Obstrucción del Conducto Lagrimal/microbiología , Masculino , Mycoplasma/aislamiento & purificación , Varicellovirus/aislamiento & purificación
11.
Vet Microbiol ; 259: 109160, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34197979

RESUMEN

High-level mupirocin resistance (HLMR) is determined by the plasmid-located ileS2 gene flanked by two copies of the insertion sequence 257 (IS257). The molecular epidemiology of high-level mupirocin-resistant isolates could be assessed by the determination of their IS257-ileS2 spacer regions conformation. In this study, 188 isolates of methicillin-resistant staphylococci were subjected to the detection of HLMR, and analysis of the conformation of the IS257-ileS2 spacer regions. Mupirocin resistance was detected in five (2,6%) isolates, among which two were recognized as Staphylococcus pseudintermedius, two as Staphylococcus haemolyticus, and one as Staphylococcus aureus. High-level mupirocin resistance was revealed by the agar disk diffusion method, and MIC values, and was confirmed by the detection of the ileS2 gene. The conformations of the IS257-ileS2 spacer regions were homologous in two S. haemolyticus strains tested. The remaining three isolates showed diverse IS257-ileS2 conformations. The results of this study indicate that HLMR occasionally occurs in staphylococci isolated from companion animals. The heterogeneity and the homogeneity of the IS257-ileS2 spacer regions confirm that the ileS2 gene spread among staphylococci of animal origin by the transfer of different as well as the same plasmids. Surveillance of the occurrence of mupirocin resistance and molecular characterization of resistant isolates are strongly recommended due to the possibility of plasmid-located resistance gene transfer between staphylococci.


Asunto(s)
Antibacterianos/farmacología , Farmacorresistencia Bacteriana Múltiple/genética , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Staphylococcus aureus Resistente a Meticilina/genética , Mupirocina/farmacología , Mascotas/microbiología , Infecciones Estafilocócicas/veterinaria , Animales , Gatos/microbiología , Coagulasa/biosíntesis , Elementos Transponibles de ADN , Perros/microbiología , Genes Bacterianos , Staphylococcus aureus Resistente a Meticilina/enzimología , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Pruebas de Sensibilidad Microbiana , Plásmidos/genética , Infecciones Estafilocócicas/microbiología , Staphylococcus/clasificación , Staphylococcus/efectos de los fármacos , Staphylococcus/genética
12.
PLoS One ; 16(6): e0253133, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34133453

RESUMEN

Pet ownership is an essential environmental exposure that might influence the health of the owner. This study's primary objectives were to explore the effects of cat ownership on the gut microbial diversity and composition of owners. Raw data from the American Gut Project were obtained from the SRA database. A total of 214 Caucasian individuals (111 female) with cats and 214 individuals (111 female) without cats were used in the following analysis. OTU number showed significant alteration in the Cat group and Female_cat group, compared with that of the no cat (NC) group and Female_ NC group, respectively. Compared with the NC group, the microbial phylum Proteobacteria was significantly decreased in the Cat group. The microbial families Alcaligenaceae and Pasteurellaceae were significantly reduced, while Enterobacteriaceae and Pseudomonadaceae were significantly increased in the Cat group. Fifty metabolic pathways were predicted to be significantly changed in the Cat group. Twenty-one and 13 metabolic pathways were predicted to be significantly changed in the female_cat and male_cat groups, respectively. Moreover, the microbial phylum Cyanobacteria was significantly decreased, while the families Alcaligenaceae, Pseudomonadaceae and Enterobacteriaceae were significantly changed in the normal weight cat group. In addition, 41 and 7 metabolic pathways were predicted to be significantly changed in the normal-weight cat and overweight cat groups, respectively. Therefore, this study demonstrated that cat ownership could influence owners' gut microbiota composition and function, especially in the female group and normal-weight group.


Asunto(s)
Gatos/microbiología , Microbioma Gastrointestinal , Mascotas/microbiología , Adolescente , Adulto , Anciano , Animales , Femenino , Humanos , Masculino , Redes y Vías Metabólicas , Persona de Mediana Edad , Factores Sexuales , Adulto Joven
13.
Prev Vet Med ; 193: 105409, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34126470

RESUMEN

The aim of this study was to evaluate the sensitivity and specificity of the interferon-gamma release assay (IGRA) for diagnosing infections with members of the Mycobacterium (M.) tuberculosis-complex (MTBC) and non-tuberculous mycobacteria (NTM) in domestic cats, and to generate defined feline-specific cut-off values using receiver operating characteristic (ROC) curve analysis to improve test performance. Records of 594 cats that had been tested by IGRA were explored to identify individuals that had a culture and/or polymerase chain reaction (PCR)-confirmed case of mycobacterial disease, and those that had a final diagnosis of non-mycobacterial disease. A total of 117 cats - 80 with mycobacterial disease and 37 diagnosed with a condition other than mycobacteriosis - were identified for further detailed analysis. This population was used to estimate test sensitivity and specificity, as well as likelihood ratios for the IGRA to correctly identify a cat with or without mycobacterial disease. Agreement between IGRA results and culture/PCR using current and proposed new cut-off values was also determined. ROC analysis of defined confirmed infected and non-mycobacterial disease control cats allowed an adjustment of current test cut-offs that increased the overall test sensitivity for MTBC infections from 83.1 % (95 % confidence interval [CI]: 71.5-90.5 %) to 90.2 % (95 % CI: 80.2-95.4%), and M. bovis infection from 43 % (95 % CI: 28.2-60.7%) to 68 % (95 % CI: 51.4-82.1%) while maintaining high test specificity (100 % in both cases). Overall agreement between IGRA results and culture/PCR, while recognising that neither culture nor PCR tests have perfect sensitivity, improved from weak (κ = 0.57) to moderate (κ = 0.71) using new proposed IGRA test cut-off values. Application of these results, based upon the statistical analysis of accumulated test data, can improve the diagnostic performance of the feline IGRA, particularly for identifying infections with M. bovis, without compromising specificity.


Asunto(s)
Enfermedades de los Gatos , Ensayos de Liberación de Interferón gamma , Tuberculosis , Animales , Enfermedades de los Gatos/diagnóstico , Enfermedades de los Gatos/microbiología , Gatos/microbiología , Ensayos de Liberación de Interferón gamma/veterinaria , Mycobacterium tuberculosis , Micobacterias no Tuberculosas , Sensibilidad y Especificidad , Tuberculosis/diagnóstico , Tuberculosis/veterinaria
14.
PLoS One ; 16(6): e0251968, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34106938

RESUMEN

BACKGROUND: Cilia-associated respiratory bacillus (CARB; now known as Filobacterium rodentium gen. nov., sp. nov.) is a primary pathogen of rodents. A CARB-like organism was reported in post-mortem lung samples of cats using light and electron microscopy. Here we explore by molecular procedures if a Filobacterium sp. is a part of the normal feline lower respiratory microbiome and whether it could in some cats contribute to the development of chronic bronchial disease. METHODOLOGY: A Filobacterium sp. was identified in three Czech cats clinically diagnosed as having chronic neutrophilic bronchitis. Bronchoalveolar lavage fluid (BALF) specimens obtained from these cats were subjected to panbacterial 16S rDNA PCR followed by Sanger sequencing of the V5 to V8 region. After these cats were treated with specific antimicrobials, their clinical signs resolved promptly, without recurrence. Next, BALF specimens from 13 Australian and 11 Italian cats with lower respiratory disease and an additional 16 lung samples of Italian cats who died of various causes were examined using next generation sequencing (NGS). Subsequently, a Filobacterium-specific qPCR assay was developed and used to re-test BALF specimens from the 11 Italian cats and lung tissue homogenates from the additional 16 deceased cats. PRINCIPAL FINDINGS: An amplicon of 548 bp with 91.24% sequence agreement with Filobacterium rodentium was obtained from all three patients, suggesting the novel Filobacterium sp. was the cause of their lower respiratory disease. The novel Filobacterium sp., which we propose to call F. felis, was detected in 3/3 Czech cats with chronic neutrophilic bronchitis, 13/13 Australian cats and 6/11 Italian cats with chronic lower respiratory disease, and 14/16 necropsy lung specimens from Italian cats. NGS and qPCR results all showed identical sequences. The Filobacterium sp. was sometimes the preponderant bacterial species in BALF specimens from cats with lower airway disease. There was an association between the presence of large numbers (greater than 105 organisms/mL) of Filobacterium and the presence of neutrophilic and/or histiocytic inflammation, although only a subset of inflammatory BALF specimens had F. felis as the preponderant organism. CONCLUSION: The novel Filobacterium sp. comprises a finite part of the normal feline lower respiratory microbiome. Under certain circumstances it can increase in absolute and relative abundance and give rise to neutrophilic and/or histiocytic bronchitis, bronchiolitis and bronchopneumonia. These findings strongly suggest that F. felis could be an underdiagnosed cause of feline bronchial disease.


Asunto(s)
Bacteroidetes , Bronquitis Crónica/veterinaria , Enfermedades de los Gatos/microbiología , Infecciones por Bacterias Gramnegativas/veterinaria , Animales , Bacteroidetes/genética , Bronquitis Crónica/microbiología , Enfermedades de los Gatos/epidemiología , Gatos/microbiología , República Checa/epidemiología , Femenino , Infecciones por Bacterias Gramnegativas/microbiología , Pulmón/microbiología , Masculino , Filogenia , ARN Ribosómico 16S/genética , Reacción en Cadena en Tiempo Real de la Polimerasa
15.
Braz J Microbiol ; 52(4): 2535-2540, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34185280

RESUMEN

This is a case report of a feline animal that presented with a skin infection on the neck from which Cryptococcus neoformans (former C. neoformans var. grubii) was isolated and identified. The cat presented two nodular tumors, approximately 2 cm in diameter, raised, solid, with a slightly irregular surface and a reddish color with white areas. Histologically, these tumors corresponded to granulomatous dermatitis and panniculitis with the presence of a large number of intralesional yeasts. From identification with biochemical and spectroscopic techniques of these lesion samples, it was determined that the etiological agent was C. neoformans. There is little information on this variety of Cryptococcus causing subcutaneous infection without involvement of other organs, and the presence of this pathogen in the few reports available has not been reliably determined. This is the first report of a cat affected by C. neoformans in Costa Rica.


Asunto(s)
Gatos/microbiología , Criptococosis , Cryptococcus neoformans , Animales , Costa Rica , Criptococosis/veterinaria , Cryptococcus neoformans/genética , Análisis de Secuencia de ADN
16.
Parasit Vectors ; 14(1): 270, 2021 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-34016174

RESUMEN

BACKGROUND: The emergence of tick-borne disease is increasing because of the effects of the temperature rise driven by global warming. In Turkey, 19 pathogens transmitted by ticks to humans and animals have been reported. Based on this, this study aimed to investigate tick-borne pathogens including Hepatozoon spp., Theileria spp., Babesia spp., Anaplasma spp., Borrelia spp., and Bartonella spp. in tick samples (n = 110) collected from different hosts (dogs, cats, cattle, goats, sheep, and turtles) by molecular methods. METHODS: To meet this objective, ticks were identified morphologically at the genus level by microscopy; after DNA isolation, each tick sample was identified at the species level using the molecular method. Involved pathogens were then investigated by PCR method. RESULTS: Seven different tick species were identified including Rhipicephalus sanguineus, R. turanicus, R. bursa, Hyalomma marginatum, H. anatolicum, H. aegyptium, and Haemaphysalis erinacei. Among the analyzed ticks, Hepatozoon spp., Theileria spp., Babesia spp., and Anaplasma spp. were detected at rates of 6.36%, 16.3%, 1.81%, and 6.36%, respectively while Borrelia spp. and Bartonella spp. were not detected. Hepatozoon spp. was detected in R. sanguineus ticks while Theileria spp., Babesia spp., and Anaplasma spp. were detected in R. turanicus and H. marginatum. According to the results of sequence analyses applied for pathogen positive samples, Hepatozoon canis, Theileria ovis, Babesia caballi, and Anaplasma ovis were identified. CONCLUSION: Theileria ovis and Anaplasma ovis were detected for the first time to our knowledge in H. marginatum and R. turanicus collected from Turkey, respectively. Also, B. caballi was detected for the first time to our knowledge in ticks in Turkey.


Asunto(s)
Ixodidae/microbiología , Ixodidae/parasitología , Enfermedades por Picaduras de Garrapatas/veterinaria , Anaplasma/genética , Anaplasma/aislamiento & purificación , Animales , Babesia/genética , Babesia/aislamiento & purificación , Bartonella/genética , Bartonella/aislamiento & purificación , Gatos/microbiología , Gatos/parasitología , Bovinos/microbiología , Bovinos/parasitología , Perros/microbiología , Perros/parasitología , Ixodidae/clasificación , Ovinos/microbiología , Ovinos/parasitología , Theileria/genética , Theileria/aislamiento & purificación , Enfermedades por Picaduras de Garrapatas/microbiología , Enfermedades por Picaduras de Garrapatas/parasitología , Turquía , Tortugas/microbiología , Tortugas/parasitología
17.
Dermatol Online J ; 27(4)2021 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-33999584

RESUMEN

Sporothrix spp. cause the most common deep fungal skin infections in Brazil and this is related to infected cats. Transmission is traditionally from organic material/plants but can also be zoonotic. Culture of a skin biopsy is the golden standard for determination. Treatment with oral itraconazole approaches up to 95% efficacy in patients with cutaneous sporotrichosis.


Asunto(s)
Ántrax/microbiología , Enfermedades de los Gatos/transmisión , Gatos/microbiología , Sporothrix/aislamiento & purificación , Esporotricosis/transmisión , Zoonosis/transmisión , Animales , Antifúngicos/uso terapéutico , Brasil , Ántrax/patología , Diagnóstico Diferencial , Enfermedades Endémicas , Femenino , Humanos , Itraconazol/uso terapéutico , Persona de Mediana Edad , Piel/microbiología , Piel/patología , Esporotricosis/diagnóstico , Esporotricosis/tratamiento farmacológico , Esporotricosis/patología
18.
Sci Rep ; 11(1): 815, 2021 01 12.
Artículo en Inglés | MEDLINE | ID: mdl-33436756

RESUMEN

CrAssphages are a diverse group of related phages detected in human feces where they are the most prevalent and abundant prokaryotic virus. CrAssphages' cellular host has been identified as the anaerobic Bacteroides intestinalis. CrAssphage has also been reported in non-human primates and environmental samples and has been proposed as a marker of human fecal contamination. Here we describe crAssphage DNA in a feline fecal sample. 95% of the ~ 100 Kb genome could be assembled and classified in genus 1 of the recently proposed Alphacrassvirinae subfamily. The cat origin of the fecal sample was confirmed by partial mitochondrial DNA sequencing. High levels of Bacteroides intestinalis DNA could also be detected in this cat's feces. Fecal samples longitudinally collected over a 4-week period showed the continuous shedding of crAssphage DNA. We therefore report the first genome sequence-confirmed detection of crAssphage in fecal samples of a non-primate mammal.


Asunto(s)
Bacteriófagos/genética , Bacteroides/aislamiento & purificación , Gatos/microbiología , Monitoreo del Ambiente/métodos , Heces/microbiología , Heces/virología , Animales , Bacteriófagos/aislamiento & purificación , Bacteroides/genética , Gatos/virología , Humanos , Filogenia , Análisis de Secuencia de ADN/métodos , Aguas del Alcantarillado/microbiología , Aguas del Alcantarillado/virología , Contaminación del Agua/análisis
19.
Parasitol Int ; 80: 102202, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33038482

RESUMEN

Rural communities in Malaysia have been shown to be exposed to Coxiella, Borrelia and rickettsial infections in previous seroprevalence studies. Further research is necessary to identify the actual causative agents and the potential vectors of these infections. The arthropods parasitizing peri-domestic animals in these communities may serve as the vector in transmitting arthropod-borne and zoonotic agents to the humans. Molecular screening of bacterial and zoonotic pathogens from ticks and fleas collected from dogs, cats and chickens from six rural communities in Malaysia was undertaken. These communities were made up of mainly the indigenous people of Malaysia, known as the Orang Asli, as well as settlers in oil palm plantations. The presence of Coxiella burnetii, Borrelia, and rickettsial agents, including Rickettsia and Anaplasma, was investigated by performing polymerase chain reaction (PCR) and DNA sequencing. Candidatus Rickettsia senegalensis was detected in one out of eight pools of Ctenocephalides felis fleas. A relapsing fever group Borrelia sp. was identified from one of seven Haemaphysalis hystricis ticks tested. The results from the PCR screening for Anaplasma unexpectedly revealed the presence of Candidatus Midichloria sp., a potential tick endosymbiont, in two out of fourteen Haemaphysalis wellingtoni ticks tested. C. burnetii was not detected in any of the samples tested. The findings here provide evidence for the presence of potentially novel strains of rickettsial and borrelial agents in which their impact on public health risks among the rural communities in Malaysia merit further investigation. The detection of a potential endosymbiont of ticks also suggest that the presence of tick endosymbionts in the region is not fully explored.


Asunto(s)
Ctenocephalides/microbiología , Ctenocephalides/parasitología , Ixodidae/microbiología , Ixodidae/parasitología , Rickettsiales/aislamiento & purificación , Anaplasma/aislamiento & purificación , Animales , Borrelia/aislamiento & purificación , Gatos/microbiología , Gatos/parasitología , Pollos/microbiología , Pollos/parasitología , Coxiella burnetii/aislamiento & purificación , Perros/microbiología , Perros/parasitología , Malasia , Reacción en Cadena de la Polimerasa/veterinaria , Rickettsiales/genética , Población Rural , Análisis de Secuencia de ADN/veterinaria
20.
Artículo en Inglés | LILACS, VETINDEX | ID: biblio-1348000

RESUMEN

Sporotrichosis is a dermatozoonosis, caused by dimorphic pathogenic fungi of the genus Sporothrix. Although Sporothrix brasiliensis is the most frequent and pathogenic species identified from the Brazilian sporotrichosis hyperendemic, to the best of our knowledge this is the first report of its molecular diagnosis from a cat with ocular lesions. A 3-month-old female, domestic feline presented an ocular manifestation with granuloma in the lower-left palpebral conjunctiva, in addition to mucocutaneous lesions in varied locations throughout the body. Samples were collected for subsequent cytopathology, fungal culture, serology, and molecular genotyping. Itraconazole was prescribed for the treatment of sporotrichosis and the animal was considered clinically cured at the end of 5 months of treatment and discharged. S. brasiliensis-cat interactions can manifest with a multitude of clinical forms that resemble either infectious or noninfectious diseases. Both the need for meticulous cat physical evaluation by a veterinarian followed by accurate laboratory diagnosis are key Public Health measures in the Brazilian sporotrichosis hyperendemic area.(AU)


A esporotricose é uma dermatozoonose causada por fungos patogênicos dimórficos do gênero Sporothrix. Embora o Sporothrix brasiliensis seja a espécie mais patogênica e prevalente na hiperendemia brasileira de esporotricose, segundo nosso conhecimento este é o primeiro relato de um gato com lesões oculares causadas por esta espécie, via diagnóstico molecular. Um felino doméstico com três meses de idade apresentou manifestação ocular com granuloma em conjuntiva palpebral inferior esquerda, além de lesões mucocutâneas em diferentes áreas do corpo. Amostras foram coletadas para posterior citopatologia, cultura de fungos, sorologia e genotipagem molecular. O itraconazol foi prescrito para o tratamento da esporotricose e o animal foi considerado clinicamente curado ao final de cinco meses de tratamento, recebendo alta. As interações do S. brasiliensis com o gato podem se manifestar com uma infinidade de formas clínicas que se assemelham a doenças infecciosas ou não. A necessidade de avaliação física meticulosa desses animais por um médico veterinário, seguida do diagnóstico laboratorial preciso, são medidas essenciais em saúde pública na área hiperendêmica para a esporotricose no Brasil.(AU)


Asunto(s)
Animales , Gatos , Esporotricosis , Gatos/lesiones , Gatos/microbiología , Lesiones Oculares/microbiología
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