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Ahad AA, Hussein HA, Arog HA, Abdi MM. Seroprevalence of brucellosis and associated risk factors in camels and its herders in selected districts of Somali Pastoral Region, Eastern Ethiopia. Prev Vet Med 2024; 229:106240. [PMID: 38850872 DOI: 10.1016/j.prevetmed.2024.106240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/10/2024]
Abstract
Brucellosis poses a major public and animal health problem in many parts of the world, particularly in pastoral settings, however, seroepidemological studies are scarce. A cross-sectional study was conducted from December 2021 to April 2022 to estimate the prevalence of brucellosis and to identify the associated risk factors for camels and occupational individuals from three purposively selected districts of the Somali pastoral region in Eastern Ethiopia. Serum samples were serially diluted using the Rose Bengal Plate Test (RBPT) as a screening test and a competitive Enzyme-Linked Immunosorbent Assay (cELISA) test as a confirmatory test. From a total of 450 camels and 250 human serum samples tested, the overall seroprevalence was confirmed to be 2.9 % (95 % CI, 1.5-4.9) in camels and 2.0 % (95 % CI, 0.2-3.7) in humans. In camels, abortion and retained fetal membrane (RFM) were significant risk factors for Brucella seropositivity (p<0.05). However, in humans, RFM disposal differed significantly (p<0.05). The fact that brucellosis is found in both camels and humans highlights the importance of implementing a coordinated One Health approach to control and eliminate the disease. This would ensure improved public health and increased livestock productivity.
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Affiliation(s)
- Abdullahi Adan Ahad
- College of Veterinary Medicine, Jigjiga University, P.O. Box: 1020, Jigjiga Ethiopia.
| | - Hassan Abdi Hussein
- College of Veterinary Medicine, Jigjiga University, P.O. Box: 1020, Jigjiga Ethiopia
| | - Hassan Abdi Arog
- College of Veterinary Medicine, Jigjiga University, P.O. Box: 1020, Jigjiga Ethiopia
| | - Mahad Mohamed Abdi
- College of Veterinary Medicine, Jigjiga University, P.O. Box: 1020, Jigjiga Ethiopia
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Narimisa N, Razavi S, Masjedian Jazi F. Risk Factors Associated with Human Brucellosis: A Systematic Review and Meta-Analysis. Vector Borne Zoonotic Dis 2024; 24:403-410. [PMID: 38597916 DOI: 10.1089/vbz.2023.0092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024] Open
Abstract
Background: Brucellosis is a zoonosis disease that can affect humans and a wide range of domestic and wild animals. Susceptibility to brucellosis in humans can be related to various factors, such as nutritional and occupational factors. This study evaluated factors related to brucellosis and identified influential risk factors for human infection. Methods: We performed a systematic literature review and meta-analysis of studies in PubMed, Web of Science, and Scopus. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were used to measure the strength of the association between some potential factors and the risk of brucellosis. Results: From 277 initial studies, 19 case-control studies were included in this review. Significant risk factors for brucellosis included occupation (OR 3.31, 95% CI 1.68-6.55), having aborted animals (OR 4.16, 95% CI 2.03-8.50), consumption of meat (OR 2.17, 95% CI 1.44-3.36), unpasteurized milk (OR 3.86, 95% CI 1.81-8.23), and raw cheese (OR 4.20, 95% CI 1.63-10.85). Conclusion: The results of this study advance the understanding of the etiology of brucellosis. In this meta-analysis, we found the association of different environmental factors with the risk of brucellosis. Additional high-quality prospective studies are needed to determine whether these factors cause brucellosis and to identify other factors.
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Affiliation(s)
- Negar Narimisa
- Microbial Biotechnology Research Center, Iran University of Medical Science, Tehran, Iran
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Shabnam Razavi
- Microbial Biotechnology Research Center, Iran University of Medical Science, Tehran, Iran
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Faramarz Masjedian Jazi
- Microbial Biotechnology Research Center, Iran University of Medical Science, Tehran, Iran
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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3
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Ahad AA, Megersa B, Edao BM. Brucellosis in camel, small ruminants, and Somali pastoralists in Eastern Ethiopia: a One Health approach. Front Vet Sci 2024; 11:1276275. [PMID: 38596459 PMCID: PMC11002772 DOI: 10.3389/fvets.2024.1276275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 02/09/2024] [Indexed: 04/11/2024] Open
Abstract
Brucellosis is a neglected bacterial zoonotic disease with economic and public health importance in pastoral communities of sub-Saharan Africa. A cross-sectional study was conducted from December 2021 to April 2022, to estimate the prevalence and identify the associated risk factors causing brucellosis in animals and associated with occupational diseases in humans from three selected districts of "the Somali Pastoral region," Eastern Ethiopia. In this study, 1,000 serum samples were screened for anti-Brucella spp. antibodies using Rose Bengal Plate Test (RBPT) and further confirmed using a competitive enzyme-linked immunosorbent assay (cELISA). A structured questionnaire was used to collect the biodata of tested animals and animal attendants to test the association between explanatory and outcome variables. The overall animal level prevalence was 5% (95% CI, 6.1-7.2.0) in small ruminants, 2.9% (95% CI, 1.5-4.9) in camels, and 2.0% (95% CI, 0.2-3.7) in occupationally linked humans. Herd size and herd history of retained fetal membranes were risk factors associated with Brucella spp. seropositivity in animals (p < 0.05). Disposing of retained fetal membranes was significantly associated (p < 0.05) with Brucella spp. seropositivity in humans. Evidence of brucellosis in various livestock species and associated seropositivity in humans indicates the need for a coordinated One Health approach, considering sociocultural dynamics of pastoral communities in controlling brucellosis to safe guard public health and increase livestock productivity.
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Affiliation(s)
- Abdullahi Adan Ahad
- Department of Microbiology and Veterinary Public Health, College of Veterinary Medicine, Jigjiga University, Jigjiga, Ethiopia
| | - Bekele Megersa
- Department of Microbiology, Immunology and Veterinary Public Health, College of Veterinary Medicine, Addis Ababa University, Bishoftu, Ethiopia
| | - Bedaso Mammo Edao
- Department of Microbiology, Immunology and Veterinary Public Health, College of Veterinary Medicine, Addis Ababa University, Bishoftu, Ethiopia
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Babo SAY, Fokou G, Yapi RB, Mathew C, Dayoro AK, Kazwala RR, Bonfoh B. Gendered asymmetry of access to knowledge for brucellosis control among pastoral communities in north-west Côte d'Ivoire. PASTORALISM 2022; 12:28. [PMID: 35761971 PMCID: PMC9226107 DOI: 10.1186/s13570-022-00241-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 04/07/2022] [Indexed: 11/10/2022] Open
Abstract
Brucellosis is an infectious zoonotic disease considered as a threat to public health and pastoralist livelihoods. Symptoms of the disease can lead to gender-specific ailments such as abortions in women and orchitis in men. Pastoralists and their families are at high risk of contracting the disease. Access to health information reinforces existing knowledge and contributes to disease prevention. However, in developing countries, interventions for knowledge sharing on zoonotic diseases predominantly target men. This study aimed to describe mechanisms of knowledge production and transfer on brucellosis according to gender, by assessing the way knowledge affects behaviours of pastoral communities. A community-based cross-sectional survey was conducted among a pastoral community (PC) of the Folon region in north-west Côte d’Ivoire. The study included transhumant pastoralists, sedentary livestock owners, shepherds and their wives. By using mixed methods, 26 semi-structured interviews were conducted, and 320 questionnaires were completed. Statistical analysis with chi-square (χ2) comparison tests was performed to compare variables between men and women. Findings were interpreted through the concept of specialisation of the social exclusion theory. We found that gender influences access to information on brucellosis and transfer of knowledge on brucellosis appeared gender-biased, especially from veterinarians towards men in the community. The social labour division and interventions of veterinarians through awareness reinforce the knowledge gap on brucellosis between men and women. Men and women consume raw milk, whilst only men in general handle animal discharges with bare hands. To improve the control of brucellosis, knowledge on best practice should be shared with pastoral communities using the One Health approach that encourages mutual learning. Innovative strategies based on gender daily tasks such as safe dairy processing by women and safe animal husbandry to expand their herd for men can be the entry point for the prevention of brucellosis.
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Affiliation(s)
- Stephane A Y Babo
- Université Félix Houphouët Boigny, Abidjan, Côte d'Ivoire.,Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire
| | - Gilbert Fokou
- Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire.,Human Sciences Research Council, Cape Town, South Africa
| | - Richard B Yapi
- Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire.,Centre d'Entomologie Médicale et Vétérinaire, Université Alassane Ouattara, Bouaké, Côte d'Ivoire
| | | | | | | | - Bassirou Bonfoh
- Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire
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Tschopp R, GebreGiorgis A, Abdulkadir O, Molla W, Hamid M, Tassachew Y, Andualem H, Osman M, Waqjira MW, Mohammed A, Negron M, Walke H, Kadzik M, Mamo G. Risk factors for Brucellosis and knowledge-attitude practice among pastoralists in Afar and Somali regions of Ethiopia. Prev Vet Med 2021; 199:105557. [PMID: 34902652 DOI: 10.1016/j.prevetmed.2021.105557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/22/2021] [Accepted: 12/05/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Brucellosis is a neglected bacterial zoonotic disease with substantial economic impact on households. Pastoral communities are a potential risk group due to their way of life being closely interlinked with their large livestock herds. METHODOLOGY A semi-structured questionnaire survey was conducted in households in the pastoral Afar and Somali (SRS) regions. All households had people and animals serologically tested for brucellosis. Questions were related to husbandry, consumption habits, and knowledge-attitude-practice towards the disease and zoonoses. Descriptive statistics and logistic analysis were performed to assess potential risk factors for having households with positive humans and/or animals. RESULT 647 households were included in the survey. Herd brucellosis prevalence was 40.3 % (15.9-86.3 % in Afar; 4-72.2 % in SRS). Over half (56.3 %) of the households in Afar and 41.8 % in SRS had at least one human reactor. Nearly a quarter of the households (22.8 %), recalled abortions in goats in the last 12 months, whereas 52.5 % and 50.3 % recalled stillborn in all species and membrane retentions respectively. All respondents drank raw milk and discarded animal afterbirths in the direct surroundings with minimal protection. Risk factors for animal reactors were goat herd size, and goat abortion. There was no identified risk factor for having human reactors in households. None of the households knew about brucellosis. CONCLUSION Although being endemic in Afar and SRS, Brucellosis is not known by the pastoralists. Brucellosis control programs will have to be tailored to the pastoral context, accounting for their mobility, large, multi-species herds and habits.
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Affiliation(s)
- Rea Tschopp
- Armauer Hansen Research Institute, PO Box 1005, Addis Ababa, Ethiopia; Swiss Tropical and Public Health Institute, Socinstr 57, 4002, Basel, Switzerland; University of Basel, Basel, Switzerland.
| | | | - Oumer Abdulkadir
- Samara University College of Veterinary Medicine, PO Box 132, Samara, Ethiopia; University of Gondor, College of Veterinary Medicine and Animal Sciences, Gondor, PO Box 196, Ethiopia
| | - Wassie Molla
- Samara University College of Veterinary Medicine, PO Box 132, Samara, Ethiopia; University of Gondor, College of Veterinary Medicine and Animal Sciences, Gondor, PO Box 196, Ethiopia
| | - Muhammed Hamid
- Samara University College of Veterinary Medicine, PO Box 132, Samara, Ethiopia
| | - Yayehyirad Tassachew
- Armauer Hansen Research Institute, PO Box 1005, Addis Ababa, Ethiopia; Hawasa University College of Medicine and Health Sciences, PO Box 1560, Hawassa, Ethiopia
| | - Henok Andualem
- Armauer Hansen Research Institute, PO Box 1005, Addis Ababa, Ethiopia; Debre Tabor University College of Medicine and Health Science, Department of Medical Laboratory, PO Box 272, Debre Tabor, Ethiopia
| | - Mahlet Osman
- Armauer Hansen Research Institute, PO Box 1005, Addis Ababa, Ethiopia
| | - Mulugeta Waji Waqjira
- ALERT (All African Leprosy, Tuberculosis and Rehabilitation Training) Center Clinical Laboratory, PO Box 165, Addis Ababa, Ethiopia
| | - Abdulkadir Mohammed
- Addis Ababa University, College of Veterinary Medicine and Agriculture, Po Box 34, Bishoftu, Ethiopia
| | - Maria Negron
- U.S. Centers for Disease Control and Prevention, 1600 Clifton Rd NE, Atlanta, GA, USA
| | - Henry Walke
- U.S. Centers for Disease Control and Prevention, 1600 Clifton Rd NE, Atlanta, GA, USA
| | - Melissa Kadzik
- U.S. Centers for Disease Control and Prevention, 1600 Clifton Rd NE, Atlanta, GA, USA
| | - Gezahegne Mamo
- Addis Ababa University, College of Veterinary Medicine and Agriculture, Po Box 34, Bishoftu, Ethiopia
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Mburu CM, Bukachi SA, H. Tokpa K, Fokou G, Shilabukha K, Ezekiel M, Bonfoh B, Kazwala R, Kreppel K. Lay attitudes and misconceptions and their implications for the control of brucellosis in an agro-pastoral community in Kilombero district, Tanzania. PLoS Negl Trop Dis 2021; 15:e0009500. [PMID: 34111114 PMCID: PMC8219154 DOI: 10.1371/journal.pntd.0009500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/22/2021] [Accepted: 05/21/2021] [Indexed: 12/26/2022] Open
Abstract
Brucellosis is a priority zoonotic disease in Tanzania that causes ill-health in people and affects livestock productivity. Inadequate awareness and behavior risking transmission can impede control efforts. We conducted a cross-sectional survey of 333 livestock owners in three villages in the Kilombero district, Tanzania, to understand their awareness, knowledge and behavior associated with brucellosis. Six Focus Group Discussions (FGDs), two in each village, were conducted, as well as an additional FGD with male herders from one of the villages. Factors associated with knowledge on brucellosis, food consumption and animal husbandry behavior risking transmission of this disease, were identified using generalized linear models. Predictors for knowledge of brucellosis were being male and having a higher educational level, while age was positively associated with a higher level of knowledge. Faith and ethnicity were associated with the performance of practices risking transmission. Following traditional religion and belonging to the Wamaasai ethnicity significantly increased the odds of carrying out these practices. Qualitative analysis gave insight into risk practices and reasoning. Of the 333 respondents, 29% reported that they had experienced abortions in their herds, 14% witnessed retained placentas, and 8% had seen still-births in their cattle within the previous year. However, survey results also showed that only 7.2% of participants had heard about brucellosis as a disease in livestock. Of those who had heard about brucellosis in livestock, 91% associated abortions with it and 71% knew that humans can get infected through raw milk consumption. People overwhelmingly attributed symptoms and transmission of brucellosis in livestock to infection with trypanosomiasis and to supernatural reasons instead. In the community, consumption of raw milk was valued and handling of aborted material was not considered a risk for infection. This agro-pastoralist community holds on to long-held beliefs and practices and lacks understanding of the biomedical concept of brucellosis. Transmission routes and symptoms of brucellosis in humans and livestock are completely unknown. The disparity between risk perception and actual transmission risk related to animal handling and consumption of animal products presents a challenge for disease awareness communication. This study recommends focused community engagement and sensitization to address the limited awareness and misconceptions among agro-pastoralists.
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Affiliation(s)
- Caroline M. Mburu
- Institute of Anthropology, Gender and African Studies, University of Nairobi, Nairobi, Kenya
| | - Salome A. Bukachi
- Institute of Anthropology, Gender and African Studies, University of Nairobi, Nairobi, Kenya
| | - Kathrin H. Tokpa
- Centre Suisse de Recherches Scientifiques en Côte d’Ivoire, Abidjan, Cote d’Ivoire
| | - Gilbert Fokou
- Centre Suisse de Recherches Scientifiques en Côte d’Ivoire, Abidjan, Cote d’Ivoire
| | - Khamati Shilabukha
- Institute of Anthropology, Gender and African Studies, University of Nairobi, Nairobi, Kenya
| | - Mangi Ezekiel
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Bassirou Bonfoh
- Centre Suisse de Recherches Scientifiques en Côte d’Ivoire, Abidjan, Cote d’Ivoire
| | | | - Katharina Kreppel
- Nelson Mandela African Institution for Science and Technology, Arusha, Tanzania
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Lukambagire AS, Mendes ÂJ, Bodenham RF, McGiven JA, Mkenda NA, Mathew C, Rubach MP, Sakasaka P, Shayo DD, Maro VP, Shirima GM, Thomas KM, Kasanga CJ, Kazwala RR, Halliday JEB, Mmbaga BT. Performance characteristics and costs of serological tests for brucellosis in a pastoralist community of northern Tanzania. Sci Rep 2021; 11:5480. [PMID: 33750848 PMCID: PMC7943594 DOI: 10.1038/s41598-021-82906-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 01/21/2021] [Indexed: 01/31/2023] Open
Abstract
The control of brucellosis across sub-Saharan Africa is hampered by the lack of standardized testing and the use of tests with poor performance. This study evaluated the performance and costs of serological assays for human brucellosis in a pastoralist community in northern Tanzania. Serum collected from 218 febrile hospital patients was used to evaluate the performance of seven index tests, selected based on international recommendation or current use. We evaluated the Rose Bengal test (RBT) using two protocols, four commercial agglutination tests and a competitive enzyme-linked immunosorbent assay (cELISA). The sensitivity, specificity, positive predictive value, negative predictive value, Youden's index, diagnostic accuracy, and per-sample cost of each index test were estimated. The diagnostic accuracy estimates ranged from 95.9 to 97.7% for the RBT, 55.0 to 72.0% for the commercial plate tests, and 89.4% for the cELISA. The per-sample cost range was $0.69-$0.79 for the RBT, $1.03-$1.14 for the commercial plate tests, and $2.51 for the cELISA. The widely used commercial plate tests performed poorly and cost more than the RBT. These findings provide evidence for the public health value of discontinuing the use of commercial agglutination tests for human brucellosis in Tanzania.
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Affiliation(s)
- AbdulHamid S Lukambagire
- College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania.
| | - Ângelo J Mendes
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Rebecca F Bodenham
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - John A McGiven
- OIE/FAO Brucellosis Reference Laboratory, Department of Bacteriology, Animal and Plant Health Agency, Surrey, UK
| | | | - Coletha Mathew
- College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Matthew P Rubach
- Kilimanjaro Christian Medical Center, Moshi, Tanzania
- Duke Global Health Institute, Durham, NC, USA
| | - Philoteus Sakasaka
- Duke Global Health Institute, Durham, NC, USA
- Kilimanjaro Clinical Research Institute-Biotechnology Laboratory, Moshi, Tanzania
| | | | - Venance P Maro
- Kilimanjaro Christian Medical Center, Moshi, Tanzania
- Kilimanjaro Christian Medical University College, Moshi, Tanzania
| | - Gabriel M Shirima
- The Nelson Mandela African Institution for Science and Technology, Arusha, Tanzania
| | - Kate M Thomas
- Kilimanjaro Clinical Research Institute-Biotechnology Laboratory, Moshi, Tanzania
- Centre for International Health, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Christopher J Kasanga
- College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Rudovick R Kazwala
- College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Jo E B Halliday
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Blandina T Mmbaga
- Kilimanjaro Christian Medical Center, Moshi, Tanzania
- Duke Global Health Institute, Durham, NC, USA
- Kilimanjaro Clinical Research Institute-Biotechnology Laboratory, Moshi, Tanzania
- Kilimanjaro Christian Medical University College, Moshi, Tanzania
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Edao BM, Ameni G, Assefa Z, Berg S, Whatmore AM, Wood JLN. Brucellosis in ruminants and pastoralists in Borena, Southern Ethiopia. PLoS Negl Trop Dis 2020; 14:e0008461. [PMID: 32706772 PMCID: PMC7406081 DOI: 10.1371/journal.pntd.0008461] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 08/05/2020] [Accepted: 06/06/2020] [Indexed: 11/19/2022] Open
Abstract
Brucellosis is a bacterial zoonotic disease that has important veterinary and public health consequences as well as economic impact in sub Saharan Africa including Ethiopia. A cross-sectional study was conducted in four selected districts of Borena Pastoral setting in Southern Ethiopia from October 2017 to February 2018 to estimate the prevalence of brucellosis and assess associated risk factors in cattle, sheep, goats and occupationally associated humans. A total of 750 cattle, 882 sheep and goats and 341 human subjects were screened for evidence of brucellosis using the Rose Bengal Test (RBT) with positive results confirmed by Competitive-ELISA(c-ELISA). Structured questionnaires were used for collection of metadata from individual animals, herders and animal attendants to test the association between explanatory and outcome variables. The overall animal level prevalence was 2.4% (95% confidence interval, CI: 1.4-3.7) in cattle, 3.2% (95% CI: 2.1-4.6) in sheep and goats, and 2.6% (95% CI: 1.2-5) in humans occupationally linked to livestock production systems. Herd size, parity, and history of abortion were risk factors associated with Brucella seropositivity (P<0.05) in cattle whereas in sheep and goats the results showed that district, age group, flock size, and history of abortion were significantly associated risk factors with Brucella seropositivity (P<0.05). Assisting calving and presence of seropositive animals in a household (P<0.05) were significantly associated with Brucella seropositivity in humans. Evidence of brucellosis in various animal species and the associated human population illustrates the need for a coordinated One Health approach to controlling brucellosis so as to improve public health and livestock productivity.
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Affiliation(s)
- Bedaso Mammo Edao
- Disease Dynamics Unit, Department of Veterinary Medicine, University of Cambridge Madingley Road, United Kingdom
- Addis Ababa University, College of Veterinary Medicine, Bishoftu, Ethiopia
- * E-mail:
| | - Gobena Ameni
- Addis Ababa University, Aklilu Lemma Institute of Pathobiology, Addis Ababa, Ethiopia
- Department of Veterinary Medicine, College of Food and Agriculture, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Zerihun Assefa
- Addis Ababa University, College of Veterinary Medicine, Bishoftu, Ethiopia
| | - Stefan Berg
- Animal and Plant Health Agency, Woodham Lane, Addlestone, United Kingdom
| | - Adrian M. Whatmore
- Animal and Plant Health Agency, Woodham Lane, Addlestone, United Kingdom
| | - James L. N. Wood
- Disease Dynamics Unit, Department of Veterinary Medicine, University of Cambridge Madingley Road, United Kingdom
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Egeru A, Dejene SW, Siya A. Short report on implications of Covid-19 and emerging zoonotic infectious diseases for pastoralists and Africa. PASTORALISM : RESEARCH, POLICY AND PRACTICE 2020; 10:12. [PMID: 32537120 PMCID: PMC7281698 DOI: 10.1186/s13570-020-00173-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 05/18/2020] [Indexed: 04/17/2023]
Abstract
Many emerging and re-emerging zoonotic infectious diseases occur in Africa. These are projected to increase as human-animal host contact increases owing to increasing environmental degradation that shrinks nature habitats for wildlife over the continent. The current outbreak of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) responsible for causing coronavirus disease in 2019 (COVID-19) has reinvigorated discourse on the disruptiveness of the zoonotic emerging infectious diseases, owing to their transboundary character. Even as the world focuses on the COVID-19 sweeping pandemic, the Middle East respiratory syndrome coronavirus (MERS)-CoV re-emerged in Saudi Arabia infecting 18 people with five deaths; this has barely received any attention. This outbreak is particularly of concern to the pastoralists in the Horn of Africa, a region that has in recent past seen an increase in camel trade with the Gulf States, especially Yemen and Saudi Arabia. Emerging and re-emerging zoonotic infectious diseases are complex, depend on human-animal-environment interaction and pose a strain on public health systems. There is a need to address these diseases dynamically through a synergistic approach, drawing on expertise from diverse sectors. One Health approach has distinguished itself as an integrative action able to bring together multiple actors on a global, national and local scale to advance the attainment of optimal health outcomes for people, animals and the environment. One Health works by strengthening the preparedness, response, mitigation and monitoring of zoonotic infectious disease risks collaboratively. We opine that as zoonotic emerging and re-emerging infectious diseases continue to rise over pastoral Africa, comprehensive implementation of the One Health approach will be urgently required.
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Affiliation(s)
- Anthony Egeru
- Department of Environmental Management, College of Agricultural and Environmental Science, Makerere University, P.O. Box 7062, Kampala, Uganda
- Training and Community Development, Regional Universities Forum for Capacity Building in Agriculture, P.O. Box 16811, Wandegeya, Kampala, Uganda
| | - Sintayehu W. Dejene
- College of Agriculture and Environmental Sciences, Haramaya University, P.O. Box 282, Dire Dawa, Ethiopia
| | - Aggrey Siya
- College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
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