Animal Health


Goats in Mozambique awaiting sale (photo credit: ILRI/Yvane Marblé).

Animal health leaders and researchers from the Global Burden of Animal Diseases (GBADs) program have secured US$ 7 million from the Bill & Melinda Gates Foundation and the UK’s Foreign, Commonwealth and Development Office to roll out a framework on measuring animal health burdens and their impacts on human lives and economies.

The information provided by the GBADs program will guide public policy and private sector strategy, contributing to improve animal health and welfare more effectively. It will also be a basis for further academic research.

Across the world, livestock production and aquaculture are critical to human nutrition and health. These animals play critical roles in society, providing income and food, but also clothing, building materials, fertilizer and draught power. However, the presence of endemic and emerging diseases, as well as other factors, negatively impact them, jeopardizing their contributions.

Every year, hundreds of millions of dollars are invested globally on disease mitigation in order to improve livestock health and productivity. Yet, a systematic way to determine the burden of animal disease on the health and wellbeing of people is not available.

It is still unknown how the burden is apportioned between smallholders and the commercial sector, or across regions and gender. Consequently, decision-makers lack the information to accurately assess whether their investments target the animal health issues that have the most significant impact on human wellbeing.

The GBADs program, led by the University of Liverpool, the World Organisation for Animal Health (OIE) and a partnership of international institutions, will enable the examination of animal health and the disease burden from a different perspective.

By assessing the global burden in economic terms, the program will help identify the individuals and communities which are the most impacted, demonstrating how animal health is intrinsically linked to agricultural productivity, smallholder household income, the empowerment of women and the equitable provision of a safe, affordable, nutritious diet.

Professor Dame Janet Beer, Vice Chancellor, University of Liverpool, said: ‘The GBADs program is a key part of our commitment to deploying our research capacity towards the welfare of humankind. The GBADs program is crucial in building a world with zero hunger, good health and equality for all, an urgent mission in which we are proud to play our part. We are grateful for the support of the Bill & Melinda Gates Foundation and the UK’s Foreign, Commonwealth and Development Office, who are supporting this work in partnership with the OIE. Together, we will realise a brighter future for animal and human well-being.’

Dr Monique Eloit, OIE Director General, said: ‘It is more evident now for everyone that animal health and public health are interconnected and play an essential role in building a sustainable and healthy planet, especially if we succeed in incorporating the environmental and socioeconomic components.’

The international institutions partnering with the University of Liverpool and OIE in the GBADs program are the Commonwealth Scientific and Industrial Research Organisation; the University of Guelph; the Institute for Health Metrics and Evaluation at the University of Washington; the International Livestock Research Institute; Murdoch University; Sciensano; Washington State University; the University of Zurich; and the Food and Agriculture Organization of the United Nations. The program has also received funding from the Brooke Foundation and the Australian Centre for International Agricultural Research.

The International Livestock Research Institute will play a key role in investigating and applying approaches to improve our understanding of the burden of animal disease in farming systems in Ethiopia. This work will act as a case study, providing insights relevant to other settings and methods that can be used elsewhere. Understanding the scale and nature of how animal disease impacts livelihoods and economies is key, but this information then needs to be used to better advise governments and other investors in livestock and disease control. Therefore, tools and approaches will be developed to ensure that animal health policies are rational and informed by evidence.

The new partnership will support the implementation of the GBADs program. In a world where 1.25 billion people work in agriculture, the program will have a positive impact on the Sustainable Development Goals contributing to Zero Hunger; Good Health and Well-being; Gender Equality; Decent Work and Economic Growth; and Responsible Consumption and Production.

Photo credit: Goats in Mozambique awaiting sale (ILRI/Yvane Marblé)

Cattle coming in from the fields in the evening in Lhate Village, Chokwe, Mozambique (photo credit: ILRI/Stevie Mann).

The current coronavirus disease (COVID-19) pandemic has brought into sharp focus the interconnectedness of people, animals and the environment and how this can contribute to the spread of disease.

One Health is a concept that recognizes that the health and well-being of people is intricately linked to the health of animals and the environment. For this reason, disease outbreaks are best tackled through a One Health approach that harnesses the collaborative efforts of multiple disciplines and sectors. This is especially so for zoonotic diseases that are spread between animals and people. One Health is also useful for addressing other public health issues such as antimicrobial resistance and food safety. 

One Health is not a new concept, but it has become more important in recent years. This is because many factors have changed interactions between people, animals and the environment. These changes have led to the emergence and re-emergence of zoonotic diseases.

The International Livestock Research Institute (ILRI) has an established record of collaborative One Health research in Africa and Southeast Asia. To mark One Health Day coming up next week on 3 November, we bring you highlights of some One Health research initiatives by ILRI and partners.

Ecosystem approaches to the better management of zoonotic emerging infectious diseases in Southeast Asia

This project worked directly with over 100 actors involved in managing zoonotic emerging infectious diseases across eight multi-disciplinary teams in Cambodia, China, Indonesia, Laos, Thailand and Vietnam. The project increased the capacity of researchers and policy implementers to use One Health approaches for better control of zoonotic diseases. The project also produced various research outputs and increased understanding of the teams’ knowledge, attitudes and practice in relation to One Health and how this approach could lead to better health outcomes for people, animals and the environment.

One Health Regional Network for the Horn of Africa

This project aims to improve the health and wealth of the people of the Horn of Africa by developing a regional network of individuals and organizations that can undertake high quality research into the link between people’s health and that of livestock and the environment. The project builds capacity to undertake basic and applied research in One Health through training programs and research placements for both research and non-research staff from participating institutions.

One Health Research, Education and Outreach Centre in Africa

The One Health Research, Education and Outreach Centre in Africa was launched barely a week ago (on 22 October 2020) and is hosted at ILRI’s Nairobi campus. Its goal is to improve the health of humans, animals and ecosystems through capacity building, strengthening of local, regional and global networks and provision of evidence-based policy advice on One Health in sub-Saharan Africa. It has four research themes: control of neglected tropical zoonotic diseases; emerging infectious diseases; food safety and informal markets; and prevention and control of antimicrobial resistance. The centre is currently supporting the Government of Kenya’s national response to the COVID-19 pandemic through COVID-19 testing in ILRI’s bioscience laboratories.

One Health Units for Humans, Environment, Animals and Livelihoods

This project applies a One Health approach to enhance the well-being and resilience of vulnerable communities in pastoralist and agro-pastoralist areas of Ethiopia, Kenya and Somalia. The project brings together professionals in human and animal health and the environment to achieve better access to human and veterinary health services and sustainable natural resource management.

Photo credit: Cattle coming in from the fields in the evening in Lhate Village, Chokwe, Mozambique (ILRI/Stevie Mann)

Open Access Week 2020 banner. Open with purpose: Taking action to build structural equity and inclusion. October 19-25.

International Open Access Week is an opportunity to raise awareness about open access publishing of research outputs to enable their universal online accessibility. Research outputs are wide-ranging and include articles in peer-reviewed journals, books, book chapters, conference proceedings, infographics, presentations, posters, reports, theses and videos.

The theme of this year’s Open Access Week (19–25 October) is ‘Open with purpose: taking action to build structural equity and inclusion’.

The Animal and Human Health program of the International Livestock Research Institute (ILRI) seeks to effectively manage or eliminate livestock, zoonotic and foodborne diseases that matter to the poor through the generation and use of knowledge, technologies and products, leading to higher farmer incomes and better health and nutrition for consumers and livestock.

To celebrate Open Access Week 2020, we bring you a curated selection of recently published open access outputs authored and co-authored by scientists from ILRI’s Animal and Human Health program from across our research portfolio on antimicrobial resistance, food safety, One Health and zoonotic diseases.

Book chapters

  • Bett, B., Randolph, D. and McDermott, J. 2020. Africa’s growing risk of diseases that spread from animals to people. In: Swinnen, J. and McDermott, J. (eds), COVID-19 and global food security. Washington, D.C.: IFPRI. pp. 124–128. https://hdl.handle.net/10568/108990
  • Kang’ethe, E., Grace, D., Alonso, S., Lindahl, J., Mutua, F. and Haggblade, S. 2020. Food safety and public health implications of growing urban food markets. In: AGRA, Africa Agriculture Status Report. Feeding Africa’s cities: Opportunities, challenges, and policies for linking African farmers with growing urban food markets. Issue 8. Nairobi, Kenya: Alliance for a Green Revolution in Africa (AGRA): 101–119. https://hdl.handle.net/10568/109386

Peer-reviewed journal articles

  • Ferguson, A.W., Muloi, D., Ngatia, D.K., Kiongo, W., Kimuyu, D.M., Webala, P.W., Olum, M.O., Muturi, M., Thumbi, S.M., Woodroffe, R., Murugi, L., Fèvre, E.M., Murray, S. and Martins, D.J. 2020. Volunteer based approach to dog vaccination campaigns to eliminate human rabies: Lessons from Laikipia County, Kenya. PLOS Neglected Tropical Diseases 14(7): e0008260. https://hdl.handle.net/10568/108692
  • Hu Suk Lee, Vuong Nghia Bui, Huyen Xuan Nguyen, Anh Ngoc Bui, Trung Duc Hoang, Hung Nguyen-Viet, Randolph, D.G. and Wieland, B. 2020. Seroprevalences of multi-pathogen and description of farm movement in pigs in two provinces in Vietnam. BMC Veterinary Research 16: 15. https://hdl.handle.net/10568/106618 
  • Kemboi, D.C., Antonissen, G., Ochieng, P.E., Croubels, S., Okoth, S., Kang’ethe, E.K., Faas, J., Lindahl, J.F. and Gathumbi, J.K. 2020. A review of the impact of mycotoxins on dairy cattle health: Challenges for food safety and dairy production in sub-Saharan Africa. Toxins 12(4): 222. https://hdl.handle.net/10568/108030
  • Kivali, V., Kiyong’a, A.N., Fyfe, J., Toye, P., Fèvre, E.M. and Cook, E.A.J. 2020. Spatial distribution of trypanosomes in cattle from western Kenya. Frontiers in Veterinary Science 7: 554. https://hdl.handle.net/10568/109133
  • Kiyong’a, A.N., Cook, E.A.J., Okba, N.M.A., Kivali, V., Reuksen, C., Haagmans, B.L. and Fèvre, E.M. 2020. Middle East respiratory syndrome coronavirus (MERS-CoV) seropositive camel handlers in Kenya. Viruses 12(4): 396. https://hdl.handle.net/10568/107946
  • Long Pham-Thanh, Magnusson, U., Minh Can-Xuan, Hung Nguyen-Viet, Lundkvist, Å. and Lindahl, J. 2020. Livestock development in Hanoi city, Vietnam—Challenges and policies. Frontiers in Veterinary Science 7: 566. https://hdl.handle.net/10568/109404
  • Mitchell, M.E.V., Alders, R., Unger, F., Hung Nguyen-Viet, Trang Thi Huyen Le and Toribio, J.-A. 2020. The challenges of investigating antimicrobial resistance in Vietnam – what benefits does a One Health approach offer the animal and human health sectors? BMC Public Health 20: 213. https://hdl.handle.net/10568/107087 
  • Mutua, F., Sharma, G., Grace, D., Bandyopadhyay, S., Shome, B. and Lindahl, J. 2020. A review of animal health and drug use practices in India, and their possible link to antimicrobial resistance. Antimicrobial Resistance and Infection Control 9: 103. https://hdl.handle.net/10568/108734
  • Njenga, M.K., Ogolla, E., Thumbi, S.M., Ngere, I., Omulo, S., Muturi, M., Marwanga, D., Bitek, A., Bett, B., Widdowson, M.-A., Munyua, P. and Osoro, E.M. 2020. Comparison of knowledge, attitude, and practices of animal and human brucellosis between nomadic pastoralists and non-pastoralists in Kenya. BMC Public Health 20: 269. https://hdl.handle.net/10568/107419
  • Wernli, D., Jørgensen, P.S., Parmley, E.J., Troell, M., Majowicz, S., Harbarth, S., Léger, A., Lambraki, I., Graells, T., Henriksson, P.J.G., Carson, C., Cousins, M., Ståhlgren, G.S., Mohan, C.V., Simpson, A.J.H., Wieland, B., Pedersen, K., Schneider, A., Chandy, S.J., Wijayathilaka, T.P., Delamare-Deboutteville, J., Vila, J., Lundborg, C.S. and Pittet, D. 2020. Evidence for action: A One Health learning platform on interventions to tackle antimicrobial resistance. Lancet Infectious Diseases. https://hdl.handle.net/10568/109151

Infographic

  • Grace, D., Alonso, S., Mutua, F., Hoffmann, V., Lore, T. and Karugia, J. 2020. Food safety in Kenya: Focus on dairy. Infographic. Nairobi, Kenya: ILRI. https://hdl.handle.net/10568/109143

Presentations and posters

  • Diarra, S., Dione, M., Konkobo-Yameogo, C., Ilboudo, G., Roesel, K., Lallogo, V.R., Ouattara, L. and Knight-Jones, T. 2020. Value chain assessment of animal source foods and vegetables in Ouagadougou, Burkina Faso: Food safety, quality and hygiene perceptions and practices. Presentation at a project webinar, 20 May 2020. https://hdl.handle.net/10568/108633
  • Hung Nguyen-Viet, Unger, F., Hu Suk Lee, Lindahl, J., Thang Nguyen, Bett, B., Fèvre, E., Tum, S., Sinh Dang Xuan, Moodley, A. and Grace, D. 2020. One Health research at the International Livestock Research Institute to address neglected tropical diseases, zoonoses and emerging infectious diseases in Southeast Asia. Presentation at a webinar by the One Health Collaborating Center Universitas Gadjah Mada, ‘World Zoonoses Day 2020: Lessons learned and future directions’, 7 July 2020. https://hdl.handle.net/10568/108791
  • Lindahl, J., Mutua, F. and Grace, D. 2020. Livestock interventions in low-income countries: A theory of change for improved nutrition. Poster presentation at the virtual 2020 Agriculture, Nutrition and Health (ANH) Academy Week research conference, 30 June–2 July 2020. https://hdl.handle.net/10568/108715
  • Wieland, B., Moodley, A., Mbatidde, I., Ndoboli, D., Tenhagen, B.-A., Roesler, U., Erechu, R., Litta-Mulondo, A., Kakooza, S., Waiswa, J. and Kankya, C. 2020. Mitigating agriculture-associated antimicrobial resistance in poultry value chains in Uganda. Poster presented at the virtual annual planning meeting of the Boosting Uganda’s Investment in Livestock Development (BUILD) project, 10–12 June 2020. https://hdl.handle.net/10568/108689

Project report

  • Blackmore, E., Guarín, A., Alonso, S., Grace, D. and Vorley, B. 2020. Informal milk markets in Kenya, Tanzania and Assam (India): An overview of their status, policy context, and opportunities for policy innovation to improve health and safety. ILRI Research Report. Nairobi, Kenya: ILRI. https://hdl.handle.net/10568/109797

Research briefs

  • Lam, S., Huyen Thi Thu Nguyen, Hung Nguyen-Viet and Unger, F. 2020. Mapping pathways toward safer pork in Vietnam. ILRI Research Brief 95. Nairobi, Kenya: ILRI. https://hdl.handle.net/10568/108768
  • Nguyen Thi Thinh, Grace, D., Pham Van Hung, Le Thi Thanh Huyen, Hung Nguyen Viet, Sinh Dang-Xuan, Nguyen Thi Duong Nga, Nguyen Thanh Luong, Nguyen Thi Thu Huyen, Tran Thi Bich Ngoc, Pham Duc Phuc and Unger, F. 2020. Food safety performance in key pork value chains in Vietnam. ILRI Research Brief 94. Nairobi, Kenya: ILRI. https://hdl.handle.net/10568/108320
  • Pham Duc Phuc, Toribio, J.-A., Ngo Hoang Tuan Hai, Sinh Dang-Xuan, Nguyen Thanh Luong, Langley, S.J., Dunham, J.G., Dinh Thanh Thuy, Dang Vu Hoa, Hung Nguyen-Viet, Grace, D. and Unger, F. 2020. Food safety risk communication and training need of stakeholders and consumers regarding pork value chain in Vietnam. ILRI Research Brief 96. Nairobi, Kenya: ILRI. https://hdl.handle.net/10568/108769

Videos

Photo credit: International Open Access Week website

Borana women with sheep and goats at a traditional deep well water source, Garba Tulla, Isiolo, Kenya (photo credit: ILRI/Fiona Flintan).

The effects of COVID-19 have gone undocumented in nomadic pastoralist communities across Africa, which are largely invisible to health surveillance systems despite their significance in the setting of emerging infectious disease.

A new research paper in the American Journal of Tropical Medicine and Hygiene (online first 10 Sept 2020) exposes these landscapes as a ‘blind spot’ in global health surveillance, elaborates on the ways in which current health surveillance infrastructure is ill-equipped to capture pastoralist populations and the animals with which they coexist, and highlights the consequential risks of inadequate surveillance among pastoralists and their livestock to global health.

As a platform for further dialogue, the authors of the paper also present solutions to address this gap. These include the development of an integrated One Health surveillance system that links pastoralists, their livestock and overlapping wildlife populations with centralized disease reporting. Community-based syndromic surveillance and participatory epidemiology would also improve early detection and reporting of disease outbreaks for more timely control interventions.

Citation
Hassell, J.M., Zimmerman, D., Fèvre, E.M., Zinsstag, J., Bukachi, S., Barry, M., Muturi, M., Bett, B., Jensen, N., Ali, S., Maples, S., Rushton, J., Tschopp, R., Madaine, Y.O., Abtidon, R.A. and Wild, H. 2020. Africa’s nomadic pastoralists and their animals are an invisible frontier in pandemic surveillance. American Journal of Tropical Medicine and Hygiene. https://doi.org/10.4269/ajtmh.20-1004

Photo credit: Boran women with sheep and goats at a traditional deep well water source, Garba Tulla, Isiolo, Kenya (ILRI/Fiona Flintan)

A pastor and his dog, Yabello, Ethiopia (photo credit: ILRI/Camille Hanotte).

World Zoonoses Day is commemorated on 6 July every year to mark the day in 1885 when Louis Pasteur successfully administered the first vaccine against rabies, a deadly zoonotic disease. The day is also an occasion to raise awareness of the risk of zoonoses, infectious diseases that can be spread between animals and people.

On this year’s World Zoonoses Day, we highlight a new research study published in PLOS Neglected Tropical Diseases (July 2020) that reports on the development, implementation and effectiveness of grassroots mass dog vaccination campaigns against rabies conducted in 2015, 2016 and 2017 in Laikipia County, Kenya.

According to the World Health Organization, rabies kills tens of thousands of people every year, mainly in Asia and Africa. Globally, rabies causes an estimated cost of US$ 8.6 billion per year. Dog bites are responsible for 99% of all cases of human rabies. Therefore, vaccinating dogs is the most cost-effective way to prevent rabies in people.

The research study found that while grassroots volunteer-based dog vaccination campaigns against rabies can be useful, these efforts need to be supported at a larger scale by county and national governments for a more sustainable approach towards eradicating the disease. Below is the author summary.

“Given the importance of mass vaccinations of domestic dogs towards eliminating human rabies in Africa and the site-specific challenges facing such campaigns, additional studies on the development and implementation of such efforts are needed.

One mechanism of mass vaccination lies in grassroots efforts that often begin at a very local scale and either develop into larger campaigns, remain local, or cease to persist past several years once interest and funding is exhausted.

Here, we discuss the development of a grassroots campaign in Laikipia County, Kenya from its local inception to its development into a county-wide rabies elimination effort.

Our results highlight challenges associated with achieving the targeted 70% coverage rate, including a need for consistent and systematic demographic monitoring of dog populations, limitations of the central point method, and logistical and financial challenges facing a volunteer-based effort.

Serious political commitment from both the local and national governments are necessary to take the budget beyond what a crowdfunded campaign can raise, including availability and access to quality dog rabies vaccines.

Without such outside support and substantial time to grow, grassroots campaigns might be better relegated to raising awareness and vaccinating dogs in small communities to protect those communities directly, without contributing to the broader ecosystem-wide transmission-stopping aim often sought by government human health and veterinary organizations.”

Citation

Ferguson, A.W., Muloi, D., Ngatia, D.K., Kiongo, W., Kimuyu, D.M., Webala, P.W., Olum, M.O., Muturi, M., Thumbi, S.M., Woodroffe, R., Murugi, L., Fèvre, E.M., Murray, S. and Martins, D.J. 2020. Volunteer based approach to dog vaccination campaigns to eliminate human rabies: Lessons from Laikipia County, Kenya. PLOS Neglected Tropical Diseases 14(7): e0008260.

Photo credit: A pastor and his dog, Yabello, Ethiopia (ILRI/Camille Hanotte)

Pastoralism

A gender-inclusive approach to community livestock vaccination can help address the different barriers faced by men and women farmers and may increase the uptake of livestock vaccines

Scientists at the International Livestock Research Institute (ILRI) recently published a study on the uptake of the Rift Valley fever vaccine in Kenya and Uganda, incorporating gender in their analysis to better understand the different barriers that men and women farmers face in adopting and using livestock vaccines.

The barriers include the cost of vaccines, long distances to vaccination points, lack of information on vaccination campaigns and decision-making processes at the household level. Understanding these barriers can help veterinary workers design more effective community livestock vaccination programs of benefit to both men and women farmers.

‘Conducting gender analysis on livestock vaccine interventions can enable implementers to identify generic and gender-specific needs of their target beneficiaries’, says Edna Mutua, the lead author of the study and gender consultant at ILRI.

‘This will allow the use of the findings to inform the design and delivery of vaccination interventions to increase efficiency and uptake’, she adds.

Rift Valley fever is a viral, mosquito-borne zoonotic disease that affects cattle, sheep, goats and camels. It causes abortions in livestock and flu-like illness in humans. People can get infected through contact with secretions or tissue of infected animals.

Rift Valley fever is endemic in East Africa and its impacts are significant. An outbreak of the disease in Kenya in 2006–07 caused 150 human deaths and led to losses of USD 32 million from livestock deaths, reduced animal productivity and trade bans on livestock and livestock products.

Vaccination of livestock is currently the most effective measure to control the disease. Previous research on Rift Valley fever vaccines have tended to focus on the production, safety and efficacy of the vaccines. Very few studies have been carried out on the uptake and adoption of livestock vaccines and most of these did not include gender in the study design and analysis but treated male and female livestock farmers as a homogeneous group.

This new ILRI-led study, published in the journal Vaccines (August 2019), provides useful insights into how prevailing gender dynamics in communities such as the division of roles and responsibilities in farmers’ households can influence the uptake and adoption of livestock vaccines.

Uptake was defined as the process the farmers take from when they receive livestock vaccination information to consenting to have their animals vaccinated and presenting the animals for vaccination. Adoption was defined as the continuous use of the vaccine when needed, even without the intervention of veterinary departments.

The study was carried out in Kwale and Murang’a counties in Kenya and Arua and Ibanda districts in Uganda. Data were collected through 58 focus group discussions (30 in Kenya and 28 in Uganda), with 8–12 discussants per group, selected based on whether or not livestock were vaccinated during recent outbreaks of Rift Valley fever.

To incorporate gender into the study design, in each country, half of the focus groups comprised men only and the other half women only. This gender disaggregation enabled the research team to collect data from the different gender groups across all four study locations.

The researchers found that men and women farmers faced different barriers in accessing and using livestock vaccines and that these constraints were influenced by socio-cultural and economic contexts and location.

For all focus groups across the four locations, the farmers ranked the top three barriers to the uptake of livestock vaccines as the cost of vaccines, limited access to information on vaccination and the side effects of the vaccines. However, including the gender and locational differences in the analysis brought forth a clearer picture of which group was most affected by which constraint.

Women in one region, for example, cited the cost of vaccines as the key challenge while women in another cited the limited information available on vaccination campaigns. In one region, the cultural dynamics around livestock ownership were paramount; in another, the long distances the women had to walk their animals to access the vaccination points was key.

The general lesson, however, was the same: ‘Provision of livestock vaccines by veterinary departments does not always guarantee uptake by men and women farmers’, lead author Edna Mutua notes.

Mutua is optimistic that veterinary authorities in Kenya and Uganda will use the research findings to design more effective community vaccination campaigns to prevent and control Rift Valley fever.

‘My hope is that this study serves as an eye-opener to veterinary departments in Kenya and Uganda on the need to integrate gender analysis into their livestock vaccine programs’, she says. ‘Optimizing vaccine uptake requires us to have a better understanding of the local contexts and constraints within which male and female farmers operate’.

This article by Tezira Lore was first published in the ILRI 2019 Annual Report.

Photo credit: A herder with his livestock in Isiolo County, Kenya (ILRI/Dorine Odongo)

Farming scene in the highlands of Ethiopia (ILRI/Apollo Habtamu).

Amid the COVID-19 pandemic that has focused global attention on the interconnectedness of people, animals and the environment and how this links to the spread of zoonotic diseases, two postdoctoral scientists affiliated with the International Livestock Research Institute (ILRI) are among five recipients of this year’s Soulsby Fellowships, awarded to support early career researchers in human or veterinary medicine working on One Health projects. 

One Health can be defined as the collaborative efforts of multiple disciplines working locally, nationally and globally to attain optimal health for people, animals and the environment.

The two postdoctoral scientists, Lisa Cavalerie from the University of Liverpool and Mark Nanyingi from the University of Liverpool and the University of Nairobi, are collaborators in the One Health Regional Network for the Horn of Africa project, a multidisciplinary international partnership that is working to improve the health and wealth of people in the Horn of Africa through One Health research.

Lisa Cavalerie, a veterinary epidemiologist, will study the benefits and risks of livestock ownership to maternal health in women in Ethiopia. She says: ‘The aim of the study will be to develop sustainable livestock health management to improve both maternal and child health.’

Mark Nanyingi, an infectious disease epidemiologist, will investigate the presence of Rift Valley fever virus in people, livestock and mosquitoes in Kenya. He aims to develop a human-animal integrated surveillance system which will inform national policy- and decision-making in the event of outbreaks. ‘This study will enhance our understanding of the geographical risk, distribution and genetic diversity of the virus,’ says Nanyingi.

We congratulate them on their awards and wish them all the best as they undertake their research projects.

Read more about the Soulsby Foundation and the other 2020 Soulsby Fellows.

Photo credit: Farming scene in the highlands of Ethiopia (ILRI/Apollo Habtamu)

Maize. Mozambique, Tete province, Pacassa village (photo credit: ILRI/Mann).

In sub-Saharan Africa, contamination of dairy feed with mycotoxins has been frequently reported. Mycotoxins pose a threat to animal health and productivity and are a hazard to human health as some mycotoxins and their metabolites are excreted in milk, such as aflatoxin M1.

A new review paper published in the journal Toxins (April 2020) describes the major mycotoxins, their occurrence and their impact in dairy cattle diets in sub-Saharan Africa, highlighting the problems related to animal health, productivity and food safety and the latest post-harvest mitigation strategies to prevent and reduce contamination of dairy feed with mycotoxins.

Citation
Kemboi, D.C., Antonissen, G., Ochieng, P.E., Croubels, S., Okoth, S., Kang’ethe, E.K., Faas, J., Lindahl, J.F. and Gathumbi, J.K. 2020. A review of the impact of mycotoxins on dairy cattle health: Challenges for food safety and dairy production in sub-Saharan Africa. Toxins 12(4): 222.

Photo credit: Maize crop, Pacassa village, Tete province, Mozambique (ILRI/Mann)

Cows walk along an irrigation canal in Niolo, Mali (photo credit: ILRI/Stevie Mann).

As part of a special COVID-19 series by the International Food Policy Research Institute (IFPRI), Bernard Bett and Delia Randolph of the International Livestock Research Institute (ILRI) and John McDermott of IFPRI write on the growing risk in Africa of pathogens that spread from animals to people and how we can learn from past epidemics to improve preparedness and response.

In their article, the scientists discuss the evolving patterns of emergence and spread of zoonotic pathogens, factors that might influence the spread of emerging zoonotic pathogens and the opportunities for controlling emerging infectious diseases in Africa. 

They write: “The record thus far on COVID-19 and on past disease outbreaks shows that early, effective and sustained response is essential to winning the battle over these diseases. Innovative use of information and communication tools and platforms and engagement of local communities are crucial to improved disease surveillance and effective response. Building these systems requires demand from the public and commitment from policymakers and investors.” 

Read the full article, Africa’s growing risk of diseases that spread from animals to people, originally posted on the IFPRI website.

Bernard Bett is a senior scientist with ILRI’s Animal and Human Health program, Delia Randolph is the co-leader of ILRI’s Animal and Human Health program and John McDermott is the director of the CGIAR Research Program on Agriculture for Nutrition and Health. The analysis and opinions expressed in the article are of the authors alone.

Photo credit: Cows walk along an irrigation canal in Niolo, Mali (ILRI/Mann)

A local cattle owner walks his cattle on a rainy day in Hung Yen province, Vietnam (photo credit: ILRI/Nguyen Ngoc Huyen).

The One Health concept promotes the enhancement of human, animal and ecosystem health through multi-sectoral governance support and policies to combat health security threats.

In Vietnam, antimicrobial resistance in animal and human health settings poses a significant threat, but one that could be minimised by adopting a One Health approach to antimicrobial resistance surveillance.

Vietnam is a potential hotspot for the emergence of antimicrobial resistance due to the high burden of infectious diseases that are directly transmissible and that are foodborne, coupled with limited enforcement of regulations to penalise non-compliance, and the relatively unregulated access to antimicrobials for humans and high antimicrobial usage for livestock.

To advance understanding of the willingness and abilities of the human and animal health sectors to investigate antimicrobial resistance through a One Health approach, a recent study published in BMC Public Health (February 2020) explored the perceptions and experiences of those tasked with investigating antimicrobial resistance in Vietnam, and the benefits a multi-sectoral approach offers.

The study used qualitative methods to provide key informants’ perspectives from the animal and human health sectors. Two scenarios of foodborne antimicrobial resistance bacteria found within the pork value chain were used as case studies to investigate challenges and opportunities for improving collaboration across different stakeholders and to understand benefits offered by a One Health approach surveillance system.

Fifteen semi-structured interviews with 11 participants from the animal and six from the human health sectors at the central level in Hanoi and the provincial level in Thai Nguyen were conducted.

Eight themes emerged from the transcripts of the interviews. From the participants’ perspectives on the benefits of a One Health approach: (1) communication and multi-sectoral collaboration, (2) building comprehensive knowledge and (3) improving likelihood of success. Five themes emerged from participants’ views of the challenges to investigate antimicrobial resistance: (4) diagnostic capacity, (5) availability and access to antibiotics, (6) tracing ability within the Vietnamese food chain, (7) personal benefits and (8) Managing the system.

The findings of the study suggest that there is potential to strengthen multi-sectoral collaboration between the animal and human health sectors in Vietnam by building on existing informal networks.

Based on these results, the authors of the study recommend an inclusive approach to multi-sectoral communication supported by government network activities to facilitate partnerships and create cross-disciplinary awareness and participation.

The themes relating to diagnostic capacity show that both the animal and human health sectors face challenges in carrying out investigations on antimicrobial resistance although based on the results, there is a greater need to strengthen the animal health sector.

Citation
Mitchell, M.E.V., Alders, R., Unger, F., Hung Nguyen-Viet, Trang Thi Huyen Le and Toribio, J.-A. 2020. The challenges of investigating antimicrobial resistance in Vietnam – what benefits does a One Health approach offer the animal and human health sectors? BMC Public Health 20: 213.

Photo credit: A local cattle owner walks his cattle on a rainy day in Hung Yen province, Vietnam (ILRI/Nguyen Ngoc Huyen)

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