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1.
BMC Infect Dis ; 24(1): 311, 2024 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-38486158

RESUMO

BACKGROUND: Bats are a reservoir for many viruses causing haemorrhagic fevers. Proximity to bats is a risk factor for virus spillover to animals and humans. We conducted this study to assess knowledge, perceptions, and exposure to bats in communities living near bat roosts in Bundibugyo District, Uganda. METHODS: A cross-sectional study using mixed methods with both quantitative and qualitative data was conducted between September and December 2022. Participants for the quantitative data (survey) (n = 384) resided near bat caves and/or roost sites and were selected using multistage random sampling. The survey investigated participants' prior exposure to bats, as well as knowledge and perceptions of bat exposure. Logistic regression was used to determine factors associated with bat exposure. Participants for the qualitative data (focus group discussions) (n = 10, 6-8 participants each) were purposely selected based on engagement in guano mining, hunting, and farming activities. Perceived risk associated with bat-related activities were identified and ranked in the focus group discussions using participatory epidemiology tools. RESULTS: In total, (214/384, 55.7%) had a history of bat exposure and (208/384, 54.2%) had poor knowledge of risk factors associated with bat exposure. Increased exposure to bats was associated with being male (OR = 1.6; 95% CI: 1.0, 2.4 p-value = 0.038), staying in urban areas (OR = 1.9; p-value = 0.010), hunting (OR = 10.9; p-value = 0.024), and positive perception to bat guano being safe as fertiliser (OR = 2.5; p-value = 0.045). During the proportional piling process, a total of 7 risk factors were identified by 10 groups with hunting during an outbreak and consumption of bats being the most frequently identified. Overall, there was a strong statistical agreement in the ranking across the 10 focus groups (W = 0.52; p < 0.01; n = 10). Based on the provided data, the adjusted odds ratio of 0.7 for the good measures (p-value = 0.112), suggests a potential protective effect on the risk of bat exposure. CONCLUSION: Communities living around bat roosts frequently come into contact with bats, yet there is inadequate awareness regarding the behaviors that can lead to the transmission of bat- borne diseases to humans. It is essential to undertake educational initiatives and preventive measures to minimise the risks of bat-related infections. The need for targeted health communication and education efforts to address these knowledge gaps and promote an accurate understanding of bats and disease transmission. Understanding of diseases associated with bats will minimize bat-related health risks especially in communities engaged in wildlife hunting.


Assuntos
Quirópteros , Febres Hemorrágicas Virais , Animais , Humanos , Masculino , Feminino , Estudos Transversais , Uganda/epidemiologia , Inquéritos e Questionários
2.
BMC Public Health ; 22(1): 2414, 2022 12 22.
Artigo em Inglês | MEDLINE | ID: mdl-36550473

RESUMO

BACKGROUND: Somalia has over 2.6 million internally displaced people (IDP) that depend on daily wages and humanitarian assistance for their livelihoods. This study investigated the impact of COVID-19 on livelihoods, food security and mental health of Somalia's IDPs. METHODS: A questionnaire was conducted with "breadwinners" (n = 585) residing in 15 randomly selected IDP camps. Mental health was assessed using the 5-item World Health Organization Wellbeing Index (WHO-5) and the Patient Health Questionnaire-9 (PHQ-9). Multivariable regression was used to explore the effect of depressive symptoms on soap use and ability to pay for food/medicine/rent. RESULTS: Knowledge of COVID-19 symptoms, transmission and prevention was relatively high, however only 55% reported using soap for hand washing. Around one third perceived that prohibition of public gatherings had negatively impacted weekly earnings. Participants reported difficulty buying food (85%), medicine (82%) and paying rent (51%) because of COVID-19. The majority were assessed as having low wellbeing and high depressive symptoms (mean WHO-5 = 44.2/100; mean PHQ-9 = 18.6/27), with most (74%) indicating that they felt worse than before the pandemic. Compared to people with low depressive symptoms, people with high depressive symptoms were less likely to use soap (aOR = 0.3, 95% CI = 0.2, 0.7; P < 0.001) and more likely to report difficulty buying food (aOR = 2.2; 95% CI = 1.1, 4.3; P = 0.02). CONCLUSION: COVID-19 and associated restrictions have negatively impacted Somalia's internally displaced population. Livelihood and mental health support is urgently needed in the recovery phase of the pandemic and should be factored into future pandemic planning.


Assuntos
COVID-19 , Refugiados , Humanos , Saúde Mental , Somália/epidemiologia , Sabões , COVID-19/epidemiologia , COVID-19/prevenção & controle , Segurança Alimentar
3.
Proc Biol Sci ; 286(1898): 20190179, 2019 03 13.
Artigo em Inglês | MEDLINE | ID: mdl-30862290

RESUMO

Anthrax is a potentially life-threatening bacterial disease that can spread between wild and livestock animals and humans. Transmission typically occurs indirectly via environmental exposure, with devastating consequences for human and animal health, as well as pastoralist economies. India has a high annual occurrence of anthrax in some regions, but a country-wide delineation of risk has not yet been undertaken. The current study modelled the geographical suitability of anthrax across India and its associated environmental features using a biogeographic application of machine learning. Both biotic and abiotic features contributed to risk across multiple scales of influence. The elephant-livestock interface was the dominant feature in delineating anthrax suitability. In addition, water-soil balance, soil chemistry and historical forest loss were also influential. These findings suggest that the elephant-livestock interface plays an important role in the cycling of anthrax in India. Livestock prevention efforts targeting this interface, particularly within anthropogenic ecotones, may yield successes in reducing ongoing transmission between animal hosts and subsequent zoonotic transmission to humans.


Assuntos
Antraz/veterinária , Doenças dos Bovinos/transmissão , Elefantes , Doenças das Cabras/transmissão , Doenças dos Ovinos/transmissão , Animais , Antraz/microbiologia , Antraz/transmissão , Bovinos , Doenças dos Bovinos/microbiologia , Doenças das Cabras/microbiologia , Cabras , Índia , Ovinos , Doenças dos Ovinos/microbiologia
4.
BMC Infect Dis ; 18(1): 623, 2018 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-30518339

RESUMO

BACKGROUND: Salmonella is an important human pathogen in Australia and annual case rates continue to increase. In addition to foodborne exposures, cases have been associated with animal and contaminated environment contact. However, routine surveillance in Australia has tended to focus on humans and food, with no reported attempts to collate and compare Salmonella data from a wider range of potential sources of exposure. METHODS: Salmonella data from humans, food, animals and environments were collated from a range of surveillance and diagnostic sources in New South Wales (NSW). Data were categorised to reflect one of 29 sample origins. Serotype diversity was described for each category, and the distribution of serotypes commonly isolated from humans was examined for each sample origin. The distribution of serotypes along the livestock-food-human continuum and at the companion animal-wildlife interface was also examined. RESULTS: In total, 49,872 Salmonella isolates were included in this analysis, comprising 325 serotypes. The vast majority of these isolates were from humans (n = 38,106). Overall S. Typhimurium was the most frequently isolated serotype and was isolated from all sample categories except natural environment and game meat. S. Enteriditis was not isolated from any livestock animal, however sporadic cases were documented in food, companion animals and a reptile. Many serotypes that were frequently isolated from livestock animals and associated food products were only rarely isolated from humans. In addition, a number of key human serotypes were only sporadically isolated from livestock and food products, suggesting alternative sources of infection. In particular, S. Paratyphi B Java and S. Wangata were more often isolated from wild animals. Finally, there was some overlap between serotypes in companion animals and wildlife, with cats in particular having a large number of serotypes in common with wild birds. CONCLUSIONS: This is the most comprehensive description of Salmonella data from humans, food, livestock, wildlife, companion animals and various environments in Australia reported to date. Results confirm that livestock and food are important sources of salmonellosis in humans but that alternative sources - such as contact with wildlife and environments - warrant further investigation. Surveillance in NSW is largely human-focussed: major knowledge gaps exist regarding the diversity and frequency of serotypes in animals. More systematic surveillance of domestic animals and wildlife is needed to inform targeted control strategies and quantitative source attribution modelling in this state.


Assuntos
Animais Domésticos/microbiologia , Animais Selvagens/microbiologia , Microbiologia de Alimentos , Salmonelose Animal/microbiologia , Infecções por Salmonella/epidemiologia , Infecções por Salmonella/microbiologia , Salmonella/classificação , Animais , Austrália/epidemiologia , Aves/microbiologia , Gatos/microbiologia , Microbiologia Ambiental , Microbiologia de Alimentos/estatística & dados numéricos , Humanos , Gado/microbiologia , Carne/microbiologia , New South Wales/epidemiologia , Salmonella/genética , Salmonella/isolamento & purificação , Salmonelose Animal/epidemiologia , Sorogrupo , Sorotipagem
5.
Proc Natl Acad Sci U S A ; 112(31): 9662-7, 2015 Aug 04.
Artigo em Inglês | MEDLINE | ID: mdl-26195733

RESUMO

The role and significance of wildlife-livestock interfaces in disease ecology has largely been neglected, despite recent interest in animals as origins of emerging diseases in humans. Scoping review methods were applied to objectively assess the relative interest by the scientific community in infectious diseases at interfaces between wildlife and livestock, to characterize animal species and regions involved, as well as to identify trends over time. An extensive literature search combining wildlife, livestock, disease, and geographical search terms yielded 78,861 publications, of which 15,998 were included in the analysis. Publications dated from 1912 to 2013 and showed a continuous increasing trend, including a shift from parasitic to viral diseases over time. In particular there was a significant increase in publications on the artiodactyls-cattle and bird-poultry interface after 2002 and 2003, respectively. These trends could be traced to key disease events that stimulated public interest and research funding. Among the top 10 diseases identified by this review, the majority were zoonoses. Prominent wildlife-livestock interfaces resulted largely from interaction between phylogenetically closely related and/or sympatric species. The bird-poultry interface was the most frequently cited wildlife-livestock interface worldwide with other interfaces reflecting regional circumstances. This review provides the most comprehensive overview of research on infectious diseases at the wildlife-livestock interface to date.


Assuntos
Animais Selvagens/microbiologia , Doenças Transmissíveis/epidemiologia , Doenças Transmissíveis/veterinária , Internacionalidade , Gado/microbiologia , Animais , Geografia , Publicações , Fatores de Tempo
7.
BMC Vet Res ; 12(1): 199, 2016 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-27613248

RESUMO

BACKGROUND: Animal reservoirs of brucellosis constitute an ongoing threat to human health globally, with foodborne, occupational and recreational exposures creating opportunities for transmission. In Australia and the United States, hunting of feral pigs has been identified as the principal risk factor for human brucellosis due to Brucella suis. Following increased reports of canine B. suis infection, we undertook a review of case notification data and veterinary records to address knowledge gaps about transmission, clinical presentation, and zoonotic risks arising from infected dogs. RESULTS: Between 2011 and 2015, there was a 17-fold increase in the number of cases identified (74 in total) in New South Wales, Australia. Spatial distribution of cases largely overlapped with high feral pig densities in the north of the state. Ninety per cent of dogs had participated directly in pig hunting; feeding of raw feral pig meat and cohabitation with cases in the same household were other putative modes of transmission. Dogs with confirmed brucellosis presented with reproductive tract signs (33 %), back pain (13 %) or lameness (10 %); sub-clinical infection was also common (40 %). Opportunities for dog-to-human transmission in household and occupational environments were identified, highlighting potential public health risks associated with canine B. suis infection. CONCLUSIONS: Brucellosis due to B. suis is an emerging disease of dogs in Australia. Veterinarians should consider this diagnosis in any dog that presents with reproductive tract signs, back pain or lameness, particularly if the dog has a history of feral pig exposure. Moreover, all people in close contact with these dogs such as hunters, household contacts and veterinary personnel should take precautions to prevent zoonotic transmission.


Assuntos
Brucella suis/isolamento & purificação , Brucelose/microbiologia , Doenças Transmissíveis Emergentes/veterinária , Doenças do Cão/microbiologia , Animais , Brucelose/epidemiologia , Doenças Transmissíveis Emergentes/microbiologia , Doenças do Cão/epidemiologia , Cães , New South Wales/epidemiologia , Zoonoses
8.
Am J Trop Med Hyg ; 2024 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-38889709

RESUMO

Brucellosis is a zoonotic disease with worldwide distribution. In Eritrea, the status of the disease in occupationally exposed dairy farmers is unknown. The objective of this study was to determine the seroprevalence of brucellosis, level of knowledge, and risky practices of dairy cattle owners/workers in Maekel and Debub regions, Eritrea. A cross-sectional study was conducted between August 2021 and February 2022. A total of 416 dairy cattle owners and workers underwent blood collection and interview using a standardized questionnaire. Blood samples were tested using Rose Bengal Plate Test, and positive samples were confirmed using competitive ELISA. Variation in knowledge scores by sociodemographic factors and practices were explored statistically. The apparent and true seroprevalence was 1.2% (95% CI: 0.05-2.8%) and 1.4% (95% CI: 0.6-3.4%), respectively. Apparent seroprevalence was similar in Maekel (1.1%) and Debub (1.2%) regions. Nearly half of the participants (49.5%) had never heard of brucellosis before. Overall, brucellosis knowledge score was low (mean score: 6.53/20). Knowledge score was higher in participants from Maekel region (P <0.001), older participants (P = 0.035), those with higher educational attainment (P = 0.001), and those with more years of experience working in dairy farming (P = 0.001). Knowledge score was lower in farm workers compared with family members (P = 0.016). No significant differences in knowledge score existed between participants who engaged in or did not engage in potential risky practices. In summary, the prevalence of brucellosis in dairy cattle owners/workers in Maekel and Debub regions, Eritrea, was low. Participants demonstrated limited knowledge of brucellosis and engaged in risky practices.

9.
J Vet Med Educ ; 40(4): 363-9, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24072190

RESUMO

The major premise of One Health is engagement of multiple disciplines to address shared problems spanning human, animal, and ecosystem health. The current model of academic specialization encourages development of isolated disciplines within the university setting, thereby creating barriers to resource sharing and academic collaboration. The aim of this project was to develop a systematic approach to mapping university assets that could be harnessed to advance One Health education. Asset in this context was defined as a course, program, or faculty expertise relevant to a particular One Health problem. The approach adopted comprised the following steps: (1) identify a current problem that would benefit from an integrated, interdisciplinary perspective (e.g., EIDs [emerging infectious diseases]); (2) identify individual disciplinary teaching areas pertinent to the problem (e.g., health communication, wildlife ecology); (3) identify competencies expected to be attained by graduates who will address the problem (e.g., respond to outbreaks); (4) survey faculty members on their teaching areas and curricular offerings that address these competencies; and (5) compile responses in a database that is searchable by teaching area and competency. We discuss our recent experiences mapping the assets at Tufts University that are relevant to the problem of EIDs with emphasis on zoonotic-disease surveillance, outbreak investigation, and outbreak response. Using 13 teaching areas and 16 competencies relevant to applied epidemiology, we identified and characterized previously untapped resources across the university. Asset mapping is thus a useful tool for identifying university resources and opportunities that can be leveraged to support interdisciplinary education for One Health.


Assuntos
Doenças Transmissíveis Emergentes/veterinária , Currículo , Educação em Veterinária , Educação em Saúde , Comunicação Interdisciplinar , Doenças Transmissíveis Emergentes/epidemiologia , Doenças Transmissíveis Emergentes/etiologia , Docentes , Massachusetts , Competência Profissional , Estudantes
10.
One Health ; 17: 100626, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38024257

RESUMO

Zoonoses are likely to cause a substantial burden on both human and animal health systems in Somalia, given the close proximity between the pastoralist majority and their livestock. However, decades of instability leading to weak disease surveillance have meant that data on the burden of zoonoses is lacking. The aim of this scoping review was to assess and synthesize the available literature on the presence and burden of zoonoses in Somalia. We used keywords to search Web of Science for relevant publications. Studies were included if they contained relevant data on a zoonosis and were undertaken in Somalia or were undertaken in another country where exposure could reasonably be assumed to have occurred in Somalia (e.g., migrants/refugees, returning soldiers, exported animals). Studies were not included if they focused on Somali ethnic communities permanently living elsewhere or if zoonotic aspects were not considered. We extracted data on disease(s) reported, geographic focus, data reported (human, animal, environment), study design and author affiliation. A total of 22 zoonotic infections were documented in 76 publications. The most frequently studied diseases were Rift Valley Fever (n = 15, 17%), brucellosis (n = 13, 14%) and hepatitis E (n = 10, 11%). Around 30% of papers reported data from relevant populations outside Somalia. Only 18 papers undertook laboratory analysis within Somalia. Most papers reported data on humans (45%) and animals (36%) with limited research on the environmental domain. Descriptive studies (47%) dominated and most were led by non-Somali researchers (89% in first authors and 95% of last authors). This study highlights the need for well-designed zoonoses research in Somalia supported by capacity building of local researchers and investments in diagnostic laboratories.

11.
Front Vet Sci ; 10: 1177572, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37396997

RESUMO

Introduction: Brucellosis is a zoonotic disease with worldwide distribution. It is considered endemic in Eritrea, however, the current prevalence status and related risk factors in animals are unknown. The objective of this study was to determine the prevalence of and risk factors for brucellosis in dairy cattle in Maekel and Debub regions, Eritrea. Methods: A cross sectional study was conducted between August 2021 and February 2022. A total of 2,740 dairy cattle from 214 herds in 10 sub-regions of Eritrea were selected for blood and data collection. Blood samples were tested using Rose Bengal Plate Test (RBPT) and positive samples were confirmed using competitive (c-ELISA). Data on risk factors was collected using questionnaire and analyzed using logistic regression. Results: In total, 34/2740 animals tested positive by RBPT. Of these, 29 were confirmed positive by c-ELISA, giving an apparent and estimated true individual-level prevalence of 1.1% (95% CI: 0.7, 1.5%) and 1.3% (95% CI: 0.9, 1.8%), respectively. Sixteen herds (7.5%) tested positive by RBPT and of these 15 herds (7.0%) were confirmed positive by c-ELISA, giving an estimated true herd-level prevalence of 7.0% (95% CI: 4.0, 10.7). Animal and herd-level apparent prevalence was 1.6 and 9.2% in Maekel, while in Debub it was 0.6 and 5.5%, respectively. Multivariable regression analysis indicated that non-pregnant lactating cows (adjusted odds ratio [aOR] = 3.35; p = 0.042) were more likely to be Brucella sero-positive. History of abortion on the farm (aOR = 5.71; p = 0.026) and larger number of cows in the herd (aOR = 1.14; p < 0.001) were associated with brucellosis sero-positivity in herds. Conclusion: Brucellosis prevalence was low in the study areas. Nonetheless, this low prevalence may increase if the disease is not controlled. Therefore, testing animals before movement, good farming practices, sanitary measures, and an awareness raising program on brucellosis are recommended.

12.
J Vet Intern Med ; 37(3): 980-991, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37158452

RESUMO

BACKGROUND: Brucellosis in dogs caused by Brucella suis is an emerging zoonotic disease. OBJECTIVES: To document clinical characteristics, serology, microbiology, and clinical response to treatment in B. suis-seropositive dogs. ANIMALS: Longitudinal study of 27 privately-owned dogs. Dogs that tested positive by serology, culture, or real-time polymerase chain reaction (qPCR) were included in the study. METHODS: Clinical (physical examination and imaging) and laboratory (serology, hematology, serum biochemistry, and qPCR or culture) assessments were made at baseline and after approximately 3, 6, 12, and 18 months. RESULTS: Dogs were followed for 10 895 dog days, with 17/27 dogs completing the 18-month follow-up. Ten dogs had signs consistent with brucellosis before enrollment (n = 4), at baseline (n = 2) or during follow-up (n = 6), with 2 dogs experiencing relapse of historical signs. Antibody titers persisted for the duration of follow-up in 15/17 dogs (88%). Radiographic (n = 5) and ultrasound (n = 11) findings, of variable clinical relevance, were observed. Brucella DNA and organisms were detected in 3 dogs, all of which had clinical signs, including in the milk of a bitch around the time of whelping. Brucella DNA was not detected in blood (n = 92 samples), urine (n = 80), saliva (n = 95) or preputial swabs (n = 78) at any time during follow-up. Six dogs underwent treatment, all of which achieved clinical remission although remission was not reflected by decreasing antibody titers. CONCLUSIONS AND CLINICAL IMPORTANCE: Most dogs with B. suis infections have subclinical infections. Serology is poorly associated with clinical disease. Excretion of organisms appears rare except in whelping bitches. Clinical management using antibiotics with or without surgery is recommended.


Assuntos
Brucella suis , Brucelose , Animais , Brucella suis/genética , Estudos Longitudinais , Brucelose/diagnóstico , Brucelose/tratamento farmacológico , Brucelose/veterinária , Zoonoses , Antibacterianos/uso terapêutico , Cães
13.
Am J Trop Med Hyg ; 109(1): 147-152, 2023 07 05.
Artigo em Inglês | MEDLINE | ID: mdl-37253438

RESUMO

Giardia duodenalis is a common gastrointestinal pathogen globally that has been associated with growth failure in children. Most of the studies have been done in school-age children, and there is a paucity of data in pre-school children. We determined the prevalence and factors associated with G. duodenalis infection in children aged 9-36 months presenting to Mulago Hospital with diarrhea or cough. Demographic and socio-economic characteristics, animal ownership, medical history, and physical examination findings were recorded. Stool was tested for G. duodenalis using real-time quantitative polymerase chain reaction (qPCR), and additional tests included stool microscopy and qPCR for Cryptosporidium. The overall prevalence of G. duodenalis infection was 6.7% (214/3,173). In children with diarrhea the prevalence was 6.9% (133/1,923), whereas it was 6.5% (81/1,250) in those with cough as the main symptom. Of 214 children with G. duodenalis infection, 19 (8.9%) were co-infected with Cryptosporidium. Older children (25-36 months) were more likely to have G. duodenalis infection (adjusted odds ratio [aOR]: 2.93, 95% CI: 1.93-4.43). Use of an unimproved toilet (aOR: 1.38, 95% CI: 1.04-1.83) and the wet season (aOR: 1.33, 95% CI: 1.00-1.77) were associated with increased infection. Other factors associated with infection were recurrent diarrhea (aOR: 2.46, 95% CI: 1.64-3.70) and passing of mucoid stool (aOR: 2.25, 95% CI: 1.08-4.66). Having a ruminant at the homestead was also associated with infection (aOR: 1.83, 95% CI: 1.20-2.79). Giardia duodenalis infection occurred in 1 of 15 children aged 9-36 months with diarrhea or cough in Kampala, Uganda. Further studies are needed to clarify the zoonotic significance of G. duodenalis infection in this setting.


Assuntos
Criptosporidiose , Cryptosporidium , Giardia lamblia , Giardíase , Animais , Giardia lamblia/genética , Criptosporidiose/epidemiologia , Criptosporidiose/diagnóstico , Uganda/epidemiologia , Cryptosporidium/genética , Prevalência , Tosse , Giardíase/epidemiologia , Giardíase/diagnóstico , Fezes , Diarreia/epidemiologia
14.
Trop Med Infect Dis ; 8(3)2023 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-36977155

RESUMO

Freshwater snails are intermediate hosts for several snail-borne diseases affecting humans and animals. Understanding the distribution of snail intermediate hosts and their infection status is very important to plan and implement effective disease prevention and control interventions. In this study, we determined the abundance, distribution, and trematode infection status of freshwater snails in two agro-ecological zones of Ethiopia. We sampled snails from 13 observation sites and examined them for trematode infections using a natural cercarial shedding method. A redundancy analysis (RDA) was used to examine the relationship between snail abundance and environmental variables. Overall, a total of 615 snails belonging to three species were identified. Lymnea natalensis and Bulinus globosus were the dominant snail species, representing 41% and 40% of the total collection, respectively. About one-third of the total snail population (33%) shed cercariae. The cercariae species recorded were Xiphidiocercaria, Brevifurcate apharyngeate distome (BAD), Echinostome, and Fasciola. Snail species were found in high abundance in aquatic habitats located in the agricultural landscape. Therefore, land-use planning and protection of aquatic habitats from uncontrolled human activities and pollution can be considered as important strategies to prevent and control the spread of snail-borne diseases in the region.

15.
Trop Med Infect Dis ; 8(4)2023 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-37104334

RESUMO

Fasciolosis is regarded as a major challenge to livestock productivity worldwide, but the burden of disease in humans has only started to receive some attention in the past three decades. The aim of this study was to determine the prevalence of human and animal fasciolosis and its determinant factors in the Gilgel Gibe and Butajira Health and Demographic Surveillance System (HDSS) sites in Ethiopia. A study was undertaken among 389 households across the two sites. Face-to-face interviews were conducted to investigate the knowledge, attitudes and practices of households with regard to fasciolosis. Stools from 377 children aged 7-15 years, and 775 animals (cattle, goats and sheep) were analyzed using a proprietary Fasciola hepatica (F. hepatica) coproantigen ELISA kit. The prevalence of fasciolosis in children was 0.5% and 1% in Butajira and Gilgel Gibe HDSS sites, respectively. The overall prevalence of animal fasciolosis was 29%, 29.2%, and 6% among cattle, sheep, and goats, respectively. More than half of the respondents from Gilgel Gibe (59%, n = 115) did not know that humans can be infected with F. hepatica. The majority of respondents in Gilgel Gibe (n = 124, 64%) and Butajira (n = 95, 50%) did not know the transmission route for fasciolosis. Grazing animals were 7 times more likely to be infected with fasciolosis than animals in cut-and-carry production systems (adjusted odds ratio [AOR] = 7.2; 95% confidence interval [CI]: 3.91-13.17). The findings indicated a lack of knowledge amongst local populations about fasciolosis. Thus, there is a need for public health awareness campaigns about fasciolosis in the study areas.

16.
One Health ; 17: 100634, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38024279

RESUMO

Background: The human population of Somalia is vulnerable to zoonoses due to a high reliance on animal husbandry. This disease risk is exacerbated by relatively low income (poverty) and weak state capacity for health service delivery in the country as well as climate extremes and geopolitical instability in the region. To address this threat to public health efficiently and effectively, it is essential that all sectors have a common understanding of the priority zoonotic diseases of greatest concern to the country. Methods: Representatives from human, animal (domestic and wildlife), agriculture, and environmental health sectors undertook a multisectoral prioritization exercise using the One Health Zoonotic Disease Prioritization (OHZDP) tool developed by the United States CDC. The process involved: reviewing available literature and creating a longlist of zoonotic diseases for potential inclusion; developing and weighting criteria for establishing the importance of each zoonoses; formulating categorical questions (indicators) for each criteria; scoring each disease according to the criteria; and finally ranking the diseases based on the final score. Participants then brainstormed and suggested strategic action plans to prevent, and control prioritized zoonotic diseases. Results: Thirty-three zoonoses were initially considered for prioritization. Final criteria for ranking included: 1) socioeconomic impact (including sensitivity) in Somalia; 2) burden of disease in humans in Somalia); 3) availability of intervention in Somalia; 4) environmental factors/determinants; and 5) burden of disease in animals in Somalia. Following scoring of each zoonotic disease against these criteria, and further discussion of the OHZDP tool outputs, seven priority zoonoses were identified for Somalia: Rift Valley fever, Middle East respiratory syndrome, anthrax, trypanosomiasis, brucellosis, zoonotic enteric parasites (including Giardia and Cryptosporidium), and zoonotic influenza viruses. Conclusions: The final list of seven priority zoonotic diseases will serve as a foundation for strengthening One Health approaches for disease prevention and control in Somalia. It will be used to: shape improved multisectoral linkages for integrated surveillance systems and laboratory networks for improved human, animal, and environmental health; establish multisectoral public health emergency preparedness and response plans using One Health approaches; and enhance workforce capacity to prevent, control and respond to priority zoonotic diseases.

17.
One Health ; 15: 100450, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36532671

RESUMO

Rabies is an important zoonosis in Ethiopia, where lack of research is cited as a constraint to implementation of the national rabies control strategy. We conducted a systematic review of publications and theses on rabies in Ethiopia, to document research gaps and areas of knowledge saturation in relation to geographic and species focus, methods and findings. We also examined funding sources and extent of local researcher participation. After screening titles and abstracts, the full text of 119 publications was included in data extraction. More than 40% of publications involved data collection in one region (Oromia); no publications reported findings from Benishangul-Gumuz, Dire Dawa or Gambella. Dogs and wildlife (especially Canis simensis) were the focus of research in 45% and 24% publications, respectively. Descriptive epidemiology (N = 39 publications), ethno-medicine/-pharmacology (N = 17) and knowledge, attitude, and practice surveys (KAP, N = 15) were amongst the most common study designs, while studies involving economic methods (N = 3) and experimental epidemiology to test interventions (N = 3) were under-represented. Incidence surveys (N = 9) commonly used post-exposure prophylaxis administration in humans as a proxy for exposure without laboratory confirmation of the rabies status of the animal. KAP surveys tended to highlight reasonable levels of knowledge of rabies and poor practices, including overreliance on medicinal plants. International researchers were the first or last (senior) author on 42% and 58% of publications, respectively, most of which were funded by international organizations (45/72 publications reporting funding source). Based on this systematic review, we suggest more applied research is needed to address gaps in laboratory surveillance (including in humans, domestic and wild animals); identify effective ways to overcome socio-cultural and other barriers to accessing effective rabies treatments; inform best approaches to incentivizing mass dog vaccination programs; and generate local estimates of the cost-benefit and cost-effectiveness of different control strategies to improve financing and political buy-in for rabies control in Ethiopia.

18.
PLoS Negl Trop Dis ; 16(2): e0010181, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-35143510

RESUMO

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.


Assuntos
Antraz/microbiologia , Antraz/veterinária , Bacillus anthracis/genética , Adolescente , Adulto , Idoso , Animais , Antraz/diagnóstico , Antraz/epidemiologia , Bacillus anthracis/classificação , Bacillus anthracis/isolamento & purificação , Gatos/microbiologia , Bovinos/microbiologia , Criança , Surtos de Doenças , Cães/microbiologia , Etiópia/epidemiologia , Feminino , Cabras/microbiologia , Humanos , Gado/microbiologia , Masculino , Carne/microbiologia , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Adulto Jovem
19.
One Health ; 13: 100314, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34485671

RESUMO

SARS-CoV-2, a betacoronavirus of likely zoonotic origin, was first reported in December 2019. Its rapid worldwide spread precipitated a range of interventions, including by veterinarians, due to impacts on human health and well-being as well as animal health and welfare. We conducted 36 key informant interviews to explore the responses of Australian veterinarians, their engagement in One Health collaboration and cooperation, and their existing and developed insights to the COVID-19 pandemic. Responses were analysed using thematic analysis. Australian veterinarians provided valuable contributions to the national COVID-19 response by protecting animal welfare, maintaining local food security, providing essential veterinary services while mitigating human health risks in clinical settings and providing both key skills and surge capacity to the human health response. This was all guided by skills in scientific literacy and evidence-based communication. Informants identified a clear and urgent need for greater One Health coordination during pandemic prevention, preparedness, and response, even in the case of a disease which largely only affects humans.

20.
Zoonoses Public Health ; 68(5): 493-502, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33960715

RESUMO

Frontline health practitioners need to be adequately prepared to recognize and respond to atypical disease presentations, some of which may have zoonotic potential. Data from previous research have suggested that veterinarians may face challenges in investigation of disease events due to time and money constraints. As part of an Australia-wide survey project, veterinarians were asked to answer an open-ended question regarding potential constraints in investigation of atypical disease events where there may be concern about a zoonosis or emerging infectious disease. Qualitative data were analysed using thematic content analysis with the consideration of the respondent's area of practice and level of experience. Five main themes were identified which encapsulated constraints to disease investigation described by participants, namely: (a) financing of disease investigations, including client willingness/ability to pay in absence of alternative government schemes; (b) client-related factors, including willingness to consent to investigation and comply with instructions; (c) professional preparedness to act, related to practitioner knowledge and technical competency; (d) workplace environment, impacted by physical, logistical and managerial aspects of workplaces; and (e) access to external technical support, primarily from government veterinary services. Successful investigation and management of atypical diseases, including potential zoonoses, requires preparedness of all veterinarians. Continuing professional education for veterinarians in infection prevention and control and biosecurity, alongside adequate government funding and support will help facilitate optimal health and biosecurity outcomes. Both state and federal governments need to review existing animal health structures to ensure cohesive responses for future disease events.


Assuntos
Doenças Transmissíveis Emergentes/veterinária , Médicos Veterinários , Zoonoses/diagnóstico , Zoonoses/prevenção & controle , Doenças dos Animais/diagnóstico , Doenças dos Animais/prevenção & controle , Doenças dos Animais/transmissão , Animais , Austrália/epidemiologia , Doenças Transmissíveis Emergentes/diagnóstico , Doenças Transmissíveis Emergentes/prevenção & controle , Coleta de Dados , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Zoonoses/transmissão
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