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1.
Vet Dermatol ; 31(5): 414-e111, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32845554

RESUMO

BACKGROUND: Dermatophytosis is a common problem in cattle. The aetiological factors associated with this disease are filamentous fungi with the ability to digest and grow on keratinized substrates. In cattle, and less frequently in other domestic animals and people, the dermatophyte Trichophyton verrucosum is most commonly isolated from skin lesions. The dermatophyte Trichophyton benhamiae is an important zoonotic pathogen, and the main sources of transmission are guinea pigs and other small rodents. OBJECTIVES: In this report, we show multispecies infection in calves (Bos taurus) after long-term transport and vaccination against trichophytosis. ANIMALS: Sixty animals were imported of which 32 were observed to be affected with superficial infection nine to 12 days after vaccination for dermatophytosis. METHODS AND MATERIALS: Diagnosis was made correlating the clinical signs with a micro- and macroscopic examination of cultured fungi. Molecular differentiation was used to confirm the species affiliation. RESULTS: Eight of the calves were infected with T. verrucosum alone, and 24 calves with both T. verrucosum and T. benhamiae. We suggest that the cause of this large outbreak was immunosuppression of the animals resulting from the stress of transport and administration of vaccine. CONCLUSION: Both T. verrucosum and T. benhamiae can be seen concurrently in cattle.


Assuntos
Doenças dos Bovinos , Tinha , Animais , Arthrodermataceae , Bovinos , Cobaias , Tinha/veterinária , Trichophyton
2.
Med Mycol ; 57(2): 171-180, 2019 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-29534233

RESUMO

Dermatophyte infections are extremely frequent worldwide, and their epidemiological features and distribution make them one of the most frequent infections all over the world. We identified and analysed multiform T. mentagrophytes strains isolated from a silver fox (Vulpes vulpes) kept on a breeding farm. Identification of dermatophyte strains was carried out traditionally by correlating both the clinical manifestations of the infection with a micro- and macroscopic examination. To confirm the species affiliation fully, molecular differentiation methods were used. DNA was isolated from the dermatophytes with the phenol-chloroform method. The reaction of chitin synthase 1 (chs1) amplification was carried out to confirm the dermatophytes. The phylogenetic analysis was based on the ITS sequences. The polymerase chain reaction melting profile (PCR-MP) procedure was used for differentiation of dermatophyte genomes. Direct analysis of the material sampled from the clinical lesions revealed the presence of arthrospores in the samples collected from all animals with skin lesions. The macromorphology of the colonies obtained from material sampled from the same individual was not homogeneous. The PCR-MP electrophoregram indicated high variability of their genomes. Although the dermatophytes were isolated from one infected fox, no two identical genomic profiles were obtained. The PCR-MP result corresponds with the phenotypic diversity of the isolates. The findings about the multiple dermatophyte infection in one individual complicate any future epidemiology work and other clinical investigation. Previously, using only morphological characteristics, it had been assumed that one fungal isolate per patient could be diagnosed. The novel findings encourage application of the newly developed molecular typing methods in the diagnosis of dermatophytosis.


Assuntos
Arthrodermataceae/isolamento & purificação , Cruzamento , Fazendas , Raposas/microbiologia , Tinha/veterinária , Animais , Arthrodermataceae/classificação , Arthrodermataceae/genética , Arthrodermataceae/fisiologia , Quitina Sintase/genética , DNA Fúngico/genética , DNA Ribossômico/genética , Variação Genética , Filogenia , Reação em Cadeia da Polimerase , Análise de Sequência de DNA , Pele/microbiologia , Pele/patologia , Tinha/diagnóstico , Tinha/microbiologia , Tinha/patologia
3.
Mycoses ; 62(3): 274-283, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30537378

RESUMO

Dermatophytes are fungi that have an ability to invade keratinised structures. Enzymes secreted by dermatophytes can underlie fungal survival on the host and development of infection. It is possible that the range of activity of keratinases from various dermatophytes is limited to specific species of animals and groups of people. The aim of this study was to carry out phenotypic analysis of the degree of keratinolytic activity of Trichophyton verrucosum strains using hairs of humans and various animal species as substrates. Our results indicated that the activity of keratinases is substrate-induced. The host range of T. verrucosum can be defined as wide. The highest activity of keratinases was recorded in media containing keratin from cow (Bos taurus) and sheep (Ovis aries) hairs in comparison with that from other tested species. The production of keratin-degrading enzymes is a function of time, with the peak of their activity occurring on day 15 of incubation. The role of keratin-degrading enzymes in the pathogenesis of dermatophytosis is becoming increasingly clearer. Given the conceptual understanding that keratin breakdown may require more than just one enzyme, the use of phenotypic methods is an optimal approach to in vitro study of the decomposition of species-specific keratin.


Assuntos
Cabelo/metabolismo , Especificidade de Hospedeiro , Queratinas/metabolismo , Trichophyton/enzimologia , Trichophyton/metabolismo , Animais , Bovinos , Humanos , Hidrólise , Ovinos
4.
Mycoses ; 61(12): 945-953, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30030967

RESUMO

Microsporum canis is a zoophilic dermatophyte, which is very contagious, especially to cats and dogs. Asymptomatic animal carriers of M. canis are regarded a critical factor in the epidemiology of the disease. The aim of this study was to investigate the epidemiological origin of M. canis isolates using morphological traits in combination with molecular analysis. Identification of dermatophyte strains was carried out by correlating the clinical manifestation of the infection with a micro- and macroscopic examination. To confirm the species affiliation fully, molecular differentiation methods were used. A positive result of the culture examination was obtained from the samples with arthrospores in the direct analysis, that is, from a symptomatic cat and humans, and from a cat without any signs of infection. The microsatellite-primed PCR fingerprinting (MSP-PCR) electro-profiles were identical for all analysed strains. The melting profile-PCR (MP-PCR) electrophoregram indicated variability of the genomes of the strains. The search for the source of the infection indicated one cat that did not have any signs of dermatophytosis. PCR-fingerprinting techniques are useful tools for epidemiological investigation of the origin of dermatophyte infection. These methods can also be used in many cases for species identification of dermatophytes and clarification of the relationships among varieties of a species.


Assuntos
Doenças do Gato/epidemiologia , Laboratórios , Microsporum/isolamento & purificação , Tinha/epidemiologia , Tinha/veterinária , Zoonoses/epidemiologia , Adulto , Animais , Doenças do Gato/microbiologia , Doenças do Gato/patologia , Gatos , Impressões Digitais de DNA , Feminino , Variação Genética , Humanos , Técnicas Microbiológicas , Repetições de Microssatélites , Microscopia , Microsporum/classificação , Microsporum/genética , Microsporum/crescimento & desenvolvimento , Pessoa de Meia-Idade , Epidemiologia Molecular , Tipagem Molecular , Técnicas de Tipagem Micológica , Tinha/microbiologia , Tinha/patologia , Zoonoses/microbiologia , Zoonoses/patologia
5.
Mycoses ; 61(9): 681-690, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29761873

RESUMO

Trichophyton verrucosum is a zoophilic fungus that is the most frequent aetiological agent of dermatophytosis in cattle. During the last few years, the number of cases of T. verrucosum from humans has been increasing constantly, which is correlated with the presence of cattle-rearing farms. We identified and analysed T. verrucosum strains isolated from humans and cattle. Identification was carried out traditionally by correlating both the clinical manifestations with a micro- and macroscopic examination. To confirm the species affiliation fully, molecular differentiation methods were used. Direct analysis revealed the presence of arthrospores. The macro- and micromorphology of the isolates obtained from material sampled was homogeneous, and characterised for T. verrucosum. The phylogenetic analysis based on the ITS sequences demonstrated that the strains formed a monophyletic group with T. verrucosum ATCC10 695 with a support of 99%. The MP-PCR analysis indicates high invariability of genomes of strains from humans and animals. MSP-fingerprinting analysis gives the same results as the MP-PCR analysis. To sum up, the rDNA ITS sequence analysis in combination with macro- and micro-morphology only facilitated T. verrucosum species identification without the possibility of intraspecific differentiation. Finding and testing methods, especially molecular technique, with sufficient discriminatory power, is the present challenge for mycologists.


Assuntos
Fazendeiros , Tipagem Molecular , Técnicas de Tipagem Micológica , Tinha/epidemiologia , Tinha/veterinária , Trichophyton/classificação , Trichophyton/isolamento & purificação , Adulto , Animais , Bovinos , Doenças dos Bovinos/epidemiologia , Doenças dos Bovinos/microbiologia , DNA Fúngico/química , DNA Fúngico/genética , DNA Espaçador Ribossômico/química , DNA Espaçador Ribossômico/genética , Genômica , Genótipo , Humanos , Masculino , Epidemiologia Molecular , Filogenia , Polônia/epidemiologia , Estudos Retrospectivos , Tinha/microbiologia , Trichophyton/genética
6.
Pol J Microbiol ; 67(4): 529-534, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30550240

RESUMO

This work presents results of the research on the occurrence of Coxiella burnetii and Francisella tularensis in the tissues of wild-living animals and ticks collected from Drawsko County, West Pomeranian Voivodeship. The real-time PCR testing for the pathogens comprised 928 samples of animal internal organs and 1551 ticks. The presence of C. burnetii was detected in 3% of wild-living animals and in 0.45-3.45% (dependent on collection areas) of ticks. The genetic sequences of F. tularensis were present in 0.49 % of ticks (only in one location - Drawa) and were not detected in animal tissues. The results indicate respectively low proportion of animals and ticks infected with C. burnetii and F. tularensis .This work presents results of the research on the occurrence of Coxiella burnetii and Francisella tularensis in the tissues of wild-living animals and ticks collected from Drawsko County, West Pomeranian Voivodeship. The real-time PCR testing for the pathogens comprised 928 samples of animal internal organs and 1551 ticks. The presence of C. burnetii was detected in 3% of wild-living animals and in 0.45­3.45% (dependent on collection areas) of ticks. The genetic sequences of F. tularensis were present in 0.49 % of ticks (only in one location ­ Drawa) and were not detected in animal tissues. The results indicate respectively low proportion of animals and ticks infected with C. burnetii and F. tularensis.


Assuntos
Animais Selvagens/microbiologia , Coxiella burnetii/isolamento & purificação , Reservatórios de Doenças/veterinária , Francisella tularensis/isolamento & purificação , Febre Q/veterinária , Carrapatos/microbiologia , Tularemia/veterinária , Animais , Coxiella burnetii/genética , Reservatórios de Doenças/microbiologia , Feminino , Francisella tularensis/genética , Masculino , Polônia/epidemiologia , Febre Q/epidemiologia , Reação em Cadeia da Polimerase em Tempo Real , Tularemia/epidemiologia
7.
Mycoses ; 58(3): 119-26, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25643744

RESUMO

Species differentiation within Trichophyton mentagrophytes complex group currently poses a major diagnostic challenge, with molecular methods increasingly supplementing classical identification based on the morphological and physiological properties of the fungi. Diagnostic and epidemiological research aimed at determining the source and means of transmission of dermatophytoses in both humans and animals requires not only species differentiation of isolates but also differentiation within species. The study was conducted on 24 isolates originating in humans and various animal species with clinical symptoms of dermatophytosis. The analysis included phenotypical identification methods and molecular methods: internal transcribed spacer sequencing and ITS-restriction fragment length polymorphism (RFLP) with multi-enzyme restriction. ITS sequence analysis identified the isolates to species - Trichophyton interdigitale, Arthroderma benhamiae and A. vanbreuseghemii, and ITS-RFLP detected six different genotypes. Genotypes I, II and III characterised strains belonging to A. benhamiae, genotype IV characterised the A. vanbreuseghemii strain, and genotypes V and VI occurred only within the species T. interdigitale. Strains isolated from guinea pigs were dominant within genotype I, while genotype II was found mainly in strains from foxes. Multi-enzyme restriction analysis of this region enables intraspecific differentiation, which may be useful in epidemiological research, particularly in determining the source of infections.


Assuntos
Arthrodermataceae/classificação , DNA Fúngico/genética , Tinha/microbiologia , Trichophyton/classificação , Trichophyton/genética , Animais , Arthrodermataceae/genética , Gatos , Bovinos , Chinchila , DNA Intergênico , Raposas , Genótipo , Cobaias , Humanos , Vison , Fenótipo , Filogenia , Polimorfismo de Fragmento de Restrição , Coelhos , Análise de Sequência de DNA , Tinha/veterinária , Trichophyton/isolamento & purificação
8.
Res Vet Sci ; 166: 105111, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38113638

RESUMO

The aim of the study was to analyze the presence of coagulase-positive Staphylococcus in swabs collected from red foxes and to characterize the drug resistance and virulence of these bacteria. In total, 415 rectal and oral swabs were collected, and coagulase-positive strains of S. pseudintermedius (n = 104) and S. aureus (n = 27) were identified using multiplex-PCR and MALDI TOF MS. Subsequent analyses showed the highest phenotypic resistance of the strains to penicillin (16.8%) and tetracycline (30.5%) confirmed by the presence of the blaZ, tetM, and tetK genes. Slightly lower resistance to erythromycin (6.9%), clindamycin (9.2%), gentamicin, streptogramins, rifampicin, nitrofurantoin, and sulphamethoxazol/trimetophrim was exhibited by single strains. Several virulence genes in a few different combinations were detected in S. aureus; LukE-LukD, and seB were the most frequent genes (37%), LukE-LukD, seB, and seC were detected in 11% of the strains, and PVL, etA, etB, and tst genes were present in two or single strains. The results of our research have confirmed that the red fox is an underestimated reservoir of coagulase-positive Staphylococcus strains, with approximately 50% of carriers of at least one resistance gene. In turn, 88.8% of the S. aureus strains had one or more virulence genes; therefore, this species of wildlife animals should be monitored as part of epidemiological surveillance.


Assuntos
Infecções Estafilocócicas , Staphylococcus aureus , Animais , Staphylococcus aureus/genética , Raposas , Coagulase , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/veterinária , Infecções Estafilocócicas/microbiologia , Staphylococcus/genética , Antibacterianos/farmacologia , Testes de Sensibilidade Microbiana/veterinária
9.
Sci Total Environ ; 818: 151834, 2022 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-34808162

RESUMO

In our research, we analyzed the resistance of cephalosporin-resistant E. coli strains to antimicrobial agents. The strains were collected during five years from wild animal species commonly inhabiting Poland. We have identified the type of ß-lactamases produced and the multidrug-resistance profile. Most strains (73.8%) had genes encoding ESBL enzymes, mainly CTX-M-1 and TEM. Almost all AmpC-ß-lactamase-producing isolates had the blaCMY-2 gene. Almost 70% of the strains tested showed a multi-drug resistance profile. The dominant phenotype was resistance to tetracycline (69.05%), and/or sulfamethoxazole (57.1%). We also found high resistance to quinolones: ciprofloxacin 35.7% and nalidixic acid 52.4%. The phenotypic resistance of the strains was in most cases confirmed by the presence of corresponding genes. Among strains, 26.2% were carriers of plasmid-mediated quinolone resistance genes (PMQR). MLST analysis revealed a large clonal variation of the strains, which was reflected in 28 different sequence types. More than half of the strains (54.7%) were classified into the following sequence complexes: 10, 23, 69, 101, 155, 156, 168, 354, 398, 446, and 648. Only one strain in the studied group was assigned to the ExPEC pathotype and represented sequence type 117. The results of our research have confirmed that isolates obtained from wild animals possess many resistance determinants and sequence types, which are also found in food-producing animals and humans. This reflects the doctrine of "One health", which clearly indicates that human health is inextricably linked with animal health as well as degree of environmental contamination. We conclude that the resistance and virulence profiles of strains isolated from wildlife animals may be a resultant of various sources encountered by animals, creating a rich and varied mosaic of genes, which is very often unpredictable and not reflected in the correlation between the sequence type and the gene profile of resistance or virulence observed in epidemic clones.


Assuntos
Infecções por Escherichia coli , Escherichia coli , Animais , Antibacterianos/farmacologia , Proteínas de Bactérias/genética , Infecções por Escherichia coli/epidemiologia , Infecções por Escherichia coli/veterinária , Raposas , Humanos , Testes de Sensibilidade Microbiana , Tipagem de Sequências Multilocus , Plasmídeos , Polônia , beta-Lactamases/genética
10.
Vet Ital ; 57(4): 319-327, 2021 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-35593495

RESUMO

Alpacas (Vicugna pacos) are growing in popularity and are increasingly being presented for veterinary care. Literature reports indicate that dermatophytosis occurring in alpacas accounted for about 3% of dermatological diagnoses. However, there are no reports regarding species of dermatophytes associated with alpacas and reservoirs of infection. In this study, we investigate the diagnosis and epidemiological origin procedure and the virulence enzymes activities of Trichophyton benhamiae isolates obtained from alpacas from a breeding farm. Identification was carried out traditionally by correlating clinical manifestations with micro- and macroscopic examination, and molecular differentiation methods based on Internal Transcribed Spacer (ITS) sequences. Epidemiological analysis was carried out on the basis of Melting Point PCR (MP -PCR) and Amplified Fragment Lenght Polymorphism (AFLP) genotyping. The production of virulence factors was evaluated phenotypically using specific test media. The results obtained from diagnostic tests indicated that the etiological factor of dermatophytosis is T. benhamiae. The same species was also isolated from cowsheds and insects. The MP-PCR and AFLP analyses indicated high invariability of the genomes of the strains isolated from the animals, cowsheds, and insects. In conclusion, animal husbandry outside the natural ecological niche may increase predisposition to dermatophytosis. The treatment of animals alone is insufficient, one should be aware that only elimination of all fungal sources is a long-term success and the key point of therapy.


Assuntos
Camelídeos Americanos , Tinha , Análise do Polimorfismo de Comprimento de Fragmentos Amplificados/veterinária , Animais , Arthrodermataceae , Fazendas , Polônia/epidemiologia , Tinha/diagnóstico , Tinha/epidemiologia , Tinha/veterinária
11.
Animals (Basel) ; 11(10)2021 Sep 23.
Artigo em Inglês | MEDLINE | ID: mdl-34679794

RESUMO

The aim of the study was to isolate and identify species belonging to the Aeromonas genus and evaluate the antimicrobial resistance and virulence patterns of isolates colonizing European pond turtles (Emys orbicularis) from natural environment of Eastern Poland. In total, 74 turtles and 15 samples of water from their natural environment were examined. More than 40 strains were isolated and identified: A. bestiarum (n = 1), A. hydrophila (n = 13), A. allosaccharophila (n = 2), A. salmonicida (n = 3), and A. veronii (n = 23). The highest incidence of resistance was noted for ampicillin (100%) and sulfamethoxazole (62.0%), followed by erythromycin and colistin (both 40.5%). Moreover, eight strains were intermediately resistant to meropenem (19%). Most Aeromonas isolates were found to possess more than one virulence gene among fla, aer, hlyA, act, ela, alt, and ast. We showed that the population of free-living European pond turtles was highly colonized by Aeromonas spp. Such strains may be an infectious agent not only for the population of turtles but also for other species of animals inhabiting their natural environment. Moreover, the undesirable properties of water quality caused by the presence of drug-resistant aeromonads could have a negative impact on human health.

12.
Environ Pollut ; 269: 116099, 2021 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-33272805

RESUMO

Bats are poorly understood as a reservoir of multidrug-resistant strains; therefore, the aim of this study was to determine molecular characterization of multidrug-resistant Enterococcus strains isolated from bat species from Poland. A multi-stage analysis based on targeted isolation of drug-resistant strains (selective media with tetracycline, chloramphenicol, gentamicin, streptomycin, and vancomycin), determination of the phenotypic profile of drug-susceptibility using the disc diffusion method, and amplification of DNA fragments surrounding rare restriction sites (ADSRRS-fingerprinting) was used for the isolation and differentiation of strains. The applied strategy finally allowed identification of E. faecalis resistant to at least one antimicrobial in 47.2% of the single-animal group and in 46.9% of the pooled samples of bat's guano. Out of the 36 distinct isolates, 69% met the criteria of multi-drug resistance, with a dominant combination of resistance to tetracycline, erythromycin, and rifampicin. Simultaneously, 41.6% of the strains were high-level aminoglycoside resistant (HLAR). In most strains, phenotypic resistance was reflected in the presence of at least one gene encoding resistance to a given drug. Moreover, our research results show that some genes were detected simultaneously in the same strain statistically significantly more frequently. This may confirm that the spread of some genes (tetM and ermB or aph (3')-IIIa as well as gelE and aac (6')-Ie-aph (2″)-Ia or ant (6)-Ia) is associated with their common occurrence on the same mobile genetic element. To our knowledge, this is the first analysis of multidrug-resistance among E. faecalis isolated from bats. Our research demonstrates that the One Health concept is not associated exclusively with food-producing animals and humans, but other species of wildlife animals should be covered by monitoring programs as well. We confirmed for the first time that bats are an important reservoir of multi-resistant E. faecalis strains and could have a great impact on environmental resistance.


Assuntos
Quirópteros , Preparações Farmacêuticas , Animais , Antibacterianos/farmacologia , Resistência a Medicamentos , Farmacorresistência Bacteriana , Enterococcus faecalis/genética , Trato Gastrointestinal , Humanos , Testes de Sensibilidade Microbiana , Polônia
13.
Antibiotics (Basel) ; 9(12)2020 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-33317032

RESUMO

The constant market demand for easily available and cheap food of animal origin necessitates an increasing use of antibiotics in animal production. The alarming data provided by organizations monitoring drug resistance in indicator and pathogenic bacteria isolated from humans and animals indicate a possible risk of a return to the preantibiotic era. For this reason, it seems that both preventive and therapeutic measures, taken as an alternative to antimicrobials, seem not only advisable but also necessary. Nevertheless, the results of various studies and market analyses, as well as difficulties in the implementation of alternative substances into veterinary medicine, do not guarantee that the selected alternatives will completely replace antimicrobials in veterinary medicine and animal production on a global scale. This publication is a brief overview of the drug resistance phenomenon and its determinants, the steps taken to solve the problem, including the introduction of alternatives to antimicrobials, and the evaluation of some factors influencing the potential implementation of alternatives in animal production. The review also presents two groups of alternatives, which, given their mechanism of action and spectrum, are most comparable to the effectiveness of antibiotics, as emphasized by the authors.

14.
Environ Microbiol Rep ; 12(6): 712-717, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32964668

RESUMO

The phenomenon of resistance of Escherichia coli strains in free-living animals has been constantly expanding in recent years. However, the data are still fragmented and, due to the growing threat to public health, there is a constant need to search for and analyse new reservoirs and indicate their role and importance in the circulation of resistance genes in the environment. Therefore, the target group in this study were free-living non-predatory animals as reservoirs of drug-resistant and potentially virulent E. coli strains. We obtained 70 different isolates, including 71.4% of multidrug-resistant strains. In strains isolated from all species of animals, we determined high resistance to ampicillin (95.7%), tetracycline (64.3%), streptomycin (51.4%) and chloramphenicol (38.6%). Every third of the E. coli-positive individual was a carrier of more than one resistant clone. Moreover, 11.4% of isolates among the resistant strains had the ExPEC, ETEC, or EHEC pathotype. Our study confirmed that not only free-living predatory animals are reservoirs of resistance but also many synanthropic species of herbivores and omnivores contribute substantially to the spread of resistant and virulent E. coli strains.


Assuntos
Animais Selvagens/microbiologia , Farmacorresistência Bacteriana Múltipla , Infecções por Escherichia coli/veterinária , Escherichia coli/efeitos dos fármacos , Escherichia coli/isolamento & purificação , Ampicilina/farmacologia , Animais , Antibacterianos/farmacologia , Cloranfenicol/farmacologia , Escherichia coli/classificação , Escherichia coli/genética , Infecções por Escherichia coli/microbiologia , Herbivoria , Filogenia , Estreptomicina/farmacologia , Tetraciclina/farmacologia
15.
Microb Drug Resist ; 26(9): 1120-1131, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32915692

RESUMO

In recent decades, the number of studies on the occurrence of resistant strains in wildlife animals has increased significantly, but data are still fragmentary. The aim of this study was to evaluate drug resistance of Escherichia coli strains isolated from wild carnivorous mammals, common in Poland. Selective media with antimicrobials (tetracycline, kanamycin, chloramphenicol, and cefotaxime) were used for isolation. Of 53 isolates shown to be distinct by the amplification of DNA fragments surrounding rare restriction site-fingerprinting method, 77.8% were multidrug-resistant (multidrug-resistant). All strains were resistant to ampicillin and many of them also exhibited resistance to tetracycline (76.2%), sulfamethoxazole (57.1%), streptomycin and kanamycin (49.2%), chloramphenicol (30.1%), and nalidixic acid (46%). In most cases, the phenotypic resistance profile was confirmed by detection of relevant genes mostly occurring in strains isolated from livestock animals and humans. Extended-spectrum ß-lactamase-producing strains were detected in one mink and three martens. The strains were carriers of blaTEM-1, blaTEM-135, and blaCTX-M-15 genes. Our research confirmed a high carrier rate of MDR E. coli, even more than one MDR strain in a single individual; therefore, wider monitoring in this group of animals should be considered.


Assuntos
Antibacterianos/farmacologia , Farmacorresistência Bacteriana Múltipla/genética , Infecções por Escherichia coli/epidemiologia , Infecções por Escherichia coli/veterinária , Escherichia coli/genética , Genes Bacterianos , beta-Lactamases/genética , Ampicilina/farmacologia , Animais , Cefotaxima/farmacologia , Cloranfenicol/farmacologia , Monitoramento Epidemiológico , Escherichia coli/classificação , Escherichia coli/efeitos dos fármacos , Escherichia coli/isolamento & purificação , Infecções por Escherichia coli/microbiologia , Infecções por Escherichia coli/transmissão , Furões/microbiologia , Expressão Gênica , Canamicina/farmacologia , Testes de Sensibilidade Microbiana , Vison/microbiologia , Mustelidae/microbiologia , Ácido Nalidíxico/farmacologia , Plasmídeos/química , Plasmídeos/metabolismo , Polônia/epidemiologia , Cães Guaxinins/microbiologia , Estreptomicina/farmacologia , Sulfametoxazol/farmacologia , Tetraciclina/farmacologia , beta-Lactamases/metabolismo
16.
Sci Total Environ ; 705: 135830, 2020 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-31818604

RESUMO

As the last link in the food chain in a complex ecosystem covering at least three different environmental spheres, species of wildlife carnivorous mammals constitute a group accumulating potential pathogens and factors resulting from human activity, including the emergence of drug resistance. Therefore, the aim of this study was to evaluate the level and range of resistance in commensal E. faecalis isolated from wildlife carnivorous mammals and genetic relationships in terms of the source of these strains as well as resistance and virulence genes. Differentiation between strains was performed based on ADSRRS-fingerprinting method. The results showed that almost half of the tested animals (48%) were carriers of at least one multidrug resistant E. faecalis strain. Moreover, 44% of MDR-positive animals showed two or three strains differing in both the genotype and the resistance phenotype. A significant percentage of strains were resistant to high-level aminoglycosides (from 20% to even 57.5%). The resistance and virulence gene profiles showed a rich panel of genes closely related to isolates from nosocomial infection and from livestock animals. The presence of the same genotypes in different hosts reflects not only a possible transfer of genes between E. faecalis strains but also exchange of strains between animals. The obtained results reflect a very high level of contamination of animals that are not subjected to targeted antibiotic therapy, which may suggest the degree of pollution of the environment. Wildlife animals and their environment can be a link closing the circulation cycle of genes and even epidemiologically important strains; therefore, there is a high risk that this pool will never run out and will be maintained at a high level.


Assuntos
Enterococcus faecalis , Animais , Antibacterianos , Farmacorresistência Bacteriana , Ecossistema , Testes de Sensibilidade Microbiana
17.
Res Vet Sci ; 128: 49-58, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31710964

RESUMO

Bats are a poorly understood reservoir of pathogenic and multi-drug resistant microorganisms; therefore, the aim of the study was to analyze the presence of drug resistance among E. coli isolated from the species of bats occurring naturally in Poland. The strategy of isolation and identification of resistant strains from pooled and single-animal samples was based on selective media with cefotaxime, chloramphenicol, kanamycin and tetracycline, the use of the ADSRRS-fingerprinting method for genomic differentiation of isolates, and the classical methods of evaluation of phenotypic and genotypic resistance. Of the 78 isolated isolates confirmed as E. coli, there were 38 genetically distinct strains resistant at least to one antimicrobial. 71% of these strains met the multi-drug resistance criterion. Moreover, two different multidrug resistant strains were isolated from three single samples. The highest resistance was observed in the case of ampicillin (66%), kanamycin (84%), sulfamethoxazole/trimetoprim (61%/55% respectively), and streptomycin (50%), which in most cases was confirmed by the presence of an adequate gene. Two isolates from single hosts produced extended-spectrum beta-lactamases (blaCTX-M-3, blaCTX-M-15, blaTEM-1). With the exception of tetracycline resistance, which was dominant among isolates from single animals, no significant differences in the resistance of the strains from both groups of samples were observed. Bats should not be neglected as another environmental reservoir and as an unpredictable source of potential pathogenic and multidrug resistant bacteria and should be extensively studied to predict the direction of the development and range of spreading resistance.


Assuntos
Antibacterianos/farmacologia , Quirópteros/microbiologia , Reservatórios de Doenças/veterinária , Farmacorresistência Bacteriana Múltipla , Infecções por Escherichia coli/epidemiologia , Escherichia coli/efeitos dos fármacos , Animais , Reservatórios de Doenças/microbiologia , Infecções por Escherichia coli/microbiologia , Polônia
18.
J Med Microbiol ; 68(6): 823-836, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31050630

RESUMO

Dermatophytes are a highly specialized group of keratinophilic and keratinolytic filamentous fungi causing a ringworm disease called dermatophytosis or superficial mycoses. Although dermatophyte infections do not threaten the host's life, they lower its quality in humans by causing discomfort related to cosmetic problems and through their epidemiological significance, whereas in farm animals they are responsible for economic losses and constitute a source of the spread of spores. Evidence from countless observational studies that have been conducted over the last 90 years indicates that dermatophytes infect humans of every age, race, gender and socioeconomic status with strikingly high rates, as well as both farmed and wild animals in various health conditions and with various epidemiological statuses. However, the prevalence of superficial fungal infections is highly variable, since it depends on several parameters associated with the infected individual and the dermatophyte, their mutual interactions, and epidemiological and geographical factors. The curious disparity in dermatophyte infection patterns has prompted many investigators to search for a link between the host, the host's predispositions and susceptibility to the disease, and the dermatophyte species and virulence. Thus, the question arises as to whether, in addition to the generally recognized factors predisposing hosts to diseases, there are some other predispositions to dermatophyte infections in a species-specific host. In this review, we describe recent findings about the mechanism of dermatophyte infections, focusing on the adaptation of the fungi to the host and conditions predisposing each side to the disease.


Assuntos
Arthrodermataceae/fisiologia , Dermatomicoses/microbiologia , Tinha/microbiologia , Animais , Animais Domésticos , Animais Selvagens , Arthrodermataceae/patogenicidade , Causalidade , Dermatomicoses/epidemiologia , Suscetibilidade a Doenças , Humanos , Prevalência , Tinha/epidemiologia , Virulência
19.
Zoonoses Public Health ; 66(8): 982-989, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31538413

RESUMO

During the last few years, the number of cases of Trichophyton verrucosum isolation from humans suffering from mycoses has been constantly increasing, which is correlated with the presence of an increasing number of outdoor breeding farms. Farmers and their families as well as veterinarians and technicians involved in handling the animals are at a higher risk of infection. One of the most important aims of mycological diagnostics is epidemiological analysis. Typically, the history of the disease is not sufficient to indicate reliably and eliminate the outbreak of infection. PCR fingerprinting methods are a useful tool in this type of analysis, which is presented in this study. The main aim is to present diagnostic and epidemiological analyses of dermatophyte isolates from llamas and their breeder. In two llamas, round alopecia sites or ca. 2-cm excoriations covered with thickened scaling epidermis were noticed at the border of the head and neck with a distinct tendency towards hair loss. Tinea unguium was noticed in a nail of the breeder's right hand. Direct analysis of the material from the clinical lesions revealed the presence of arthrospores. The macro- and micromorphology of the isolates were homogeneous and characteristic for T. verrucosum. The identification analysis based on the ITS sequences confirmed the previous morphological diagnostic examination. The MP-PCR and MSP-PCR analysis indicated high invariability of the genomes of the strains isolated from the human and animals. The epidemiological research has indicated an identical source of dermatophyte infection in the breeder and the lamas. To sum up, the number of pets and farm animals is increasing and dermatologists should always be informed about possible dermatophyte transmission sources. The possibility of transmission of zoophilic dermatophytes from humans to animals is a suggestion for further analysis; therefore, this type of transmission should be considered in dermatological studies.


Assuntos
Camelídeos Americanos/microbiologia , Tinha/veterinária , Trichophyton/genética , Zoonoses/transmissão , Animais , Cruzamento , Impressões Digitais de DNA , DNA Espaçador Ribossômico , Fazendas , Genoma Fúngico , Humanos , Masculino , Unhas/microbiologia , Propriedade , Filogenia , Análise de Sequência de DNA , Tinha/diagnóstico , Tinha/transmissão , Zoonoses/microbiologia
20.
Ann Parasitol ; 65(3): 281-286, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31599556

RESUMO

The Haemaphysalis concinna tick is a rare species in Poland. To date, it was found only once a few decades ago. During tick collection for epidemiological studies, a stable population of this arachnid was found in a military training area near Nowa Deba. This report is particularly important, given the role of Haemaphysalis concinna in the spread of dangerous vector-borne diseases.


Assuntos
Vetores Artrópodes , Doenças Transmissíveis , Ixodidae , Distribuição Animal , Animais , Vetores Artrópodes/fisiologia , Doenças Transmissíveis/transmissão , Polônia
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