OneHealth


World Food Safety Day is celebrated on 7 June every year to raise awareness on food safety and inspire action to help prevent and manage foodborne risks thereby contributing to human health, food and nutrition security, economic prosperity, market access, and sustainable development. The theme this year is Food standards save lives.

The International Livestock Research Institute (ILRI) is commemorating World Food Safety Day 2023 with the launch of a new ILRI-commissioned report, New directions for tackling food safety risks in the informal sector of developing countries, by Spencer Henson, Steven Jaffee and Shuo Wang.

The report will be launched at a webinar on Wednesday 7 June 2023 at 0900 hours EDT / 1300 hours GMT /1600 hours EAT.

Despite ongoing structural changes, the food systems of most low- and lower middle-income countries are still dominated by small-scale processors, grocers, market vendors and food service operators. Unsafe food is a widespread issue in these informal food systems, with national public health implications.

Few countries have coherent strategies to effectively tackle food safety risks in the informal sector. Most of the policy attention and resources now devoted to domestic food safety in the developing world focus on strengthening centralized systems for ‘food control’. 

The authors of the report argue that a different approach is needed to better tackle food safety risks in the informal sector. This would entail local action that is centrally guided, multisectoral action, rebalancing the use of sticks and carrots, and differentiating local strategies and priorities.

Register for the webinar and join us to learn more about the report and hear reactions from food safety experts.

We have also created a landing page on the ILRI website to showcase our food safety projects, publications, stories and key messages. The page also highlights the profiles of ILRI scientists involved in food safety research.

The production of the report, New directions for tackling food safety risks in the informal sector of developing countries, was supported by the CGIAR Research Program on Agriculture for Nutrition and Health (A4NH) and the CGIAR Initiative on One Health. We thank all funders who supported this research through their contributions to the CGIAR Trust Fund.

Join the online conversations by following the hashtags #FoodSafety, #SafeFood and #WorldFoodSafetyDay.

Photo credit: World Health Organization

Bangladesh fish market (photo credit: Kingkar Shaha, ECOFISH II/WorldFish)

Antimicrobial resistance is a public health problem worldwide. Bangladesh, like its neighbouring countries, faces many public health challenges, including access to safe food, inadequate food surveillance, as well as increasing antimicrobial resistance.

A new study published in Antibiotics (Mar 2023) investigated bacterial contamination and the antimicrobial resistance profile of pathogens in marketed food in Bangladesh. The study also explored barriers to reducing antimicrobial resistance in the country.

The study was carried out by researchers affiliated to the Bangladesh Agricultural University, the Bangladesh Department of Livestock Services, the Bangladesh Livestock Research Institute, the International Livestock Research Institute, the Swedish University of Agricultural Sciences, Uppsala University and the University of Greenwich.

The researchers collected 366 tomatoes, 359 chicken and 249 fish samples from 732 vendors in traditional markets in urban, peri-urban and rural areas in Bangladesh, as well as from 121 modern retails in Dhaka capital to analyse Vibrio cholerae and Escherichia coli in fish, Salmonella in chicken, and Salmonella and E. coli in tomatoes.

Antibiotic susceptibility against 11 antibiotics was tested using a disc diffusion test and interpreted by an automated zone inhibition reader.

A qualitative study using key informant interviews was also conducted to explore antimicrobial use and antimicrobial resistance reduction potential in Bangladesh.

They found E. coli in 14.21% of tomatoes and 26.91% of fish samples, while 7.38% of tomatoes and 17.27% of chicken were positive for Salmonella, and 44.98% of fish were positive for Vibrio cholerae.

About 70% of all isolated pathogens were multidrug resistant, that is, they were resistant to three or more antibiotic groups.

Qualitative interviews revealed an inadequate surveillance system for antibiotic use and antimicrobial resistance in Bangladesh, especially in the agriculture sector.

To be able to fully understand the human health risks from bacterial hazards in the food and the antimicrobial resistance situation in Bangladesh, the authors of the study propose that a nationwide study with a One Health approach be conducted, including antimicrobial resistance testing and assessment of antimicrobial use and its drivers.

The study was supported by the CGIAR Research Program on Agriculture for Nutrition and Health, the CGIAR Initiative on Resilient Cities and the CGIAR Initiative on One Health.

Citation
Samad, M.A., Eberson, L., Begum, R., Alam, M.G.S., Talukdar, F., Akter, R., Sinh Dang-Xuan, Sharma, G., Islam, S., Siddiky, N.A., Uddin, A.S.M.A., Mahmud, M.A., Sarker, M.S., Rahman, M.S., Grace, D. and Lindahl, J.F. 2023. Microbial contamination and antibiotic resistance in marketed food in Bangladesh: Current situation and possible improvements. Antibiotics 12(3): 555.

Photo credit: Biponibag fish market (Kingkar Shaha, ECOFISH II/WorldFish)

Village women and livestock in Niger (photo credit: ILRI/Stevie Mann).

Governments are currently negotiating a historic global pandemic treaty to protect us from future pandemics. The special session of the 2021 World Health Assembly agreed that the new accord will focus on early detection and prevention of pandemics, as well as the One Health approach which recognises the interconnectedness of human, animal and environment health.

On Tuesday 28 June 2022, the Action for Animal Health coalition will host an online event during which experts from civil society and multilateral organizations will discuss why robust animal health systems are critical to putting One Health into practice to reduce the risk of zoonoses spilling over to people.

The International Livestock Research Institute (ILRI) is a member of the Action for Animal Health coalition which calls on governments, donors and international agencies to invest in animal health systems through five pillars of action:

  • Support community engagement and equitable access to animal health services
  • Increase the numbers and improve the skills of the animal health workforce
  • Close the veterinary medicines and vaccines gap
  • Improve animal disease surveillance
  • Enhance collaboration for One Health

Join the online event to hear more about why stronger animal health systems are key to preventing another pandemic. 

Below are details of the event and how to register.

Date: Tuesday 28 June 2022

Time: 1200–1315 hours (BST, GMT+1)

Location: Online (a Zoom link will be sent to registered participants the day before the event)

Registration link: https://takeaction.thebrooke.org/page/103248/event/2 

Speakers

  • Klara Saville, head of animal health, welfare and community development, Brooke/Action for Animal Health
  • Gladys Kalema-Zikusoka, founder and chief executive officer of Conservation Through Public Health
  • Mariana Vale, Ecology Department, Federal University of Rio de Janeiro, Preventing Pandemics at the Source, and member of the Intergovernmental Panel on Climate Change
  • Chadia Wannous, One Health global coordinator, World Organisation for Animal Health
  • Angélique Angot, laboratory specialist, Food and Agriculture Organization of the United Nations

Moderator: Patricia Amira

Photo credit: Village women and livestock in Niger (ILRI/Stevie Mann)

To commemorate this year’s World Food Safety Day (7 June) under the theme Safer food, better health, the International Livestock Research Institute (ILRI) has launched an online food safety campaign and landing page to showcase its collaborative research on risk-based approaches to improving food safety in low- and middle-income countries.

Better management of foodborne diseases could save nearly half a million lives a year and safeguard the livelihoods of over one billion small-scale livestock producers.

ILRI’s approach to food safety research is based on risk analysis. We identify the hazards in food and build the capacity of policymakers to understand risk-based approaches.

Policy will be more effective and efficient if based on actual risk to human health rather than the presence of hazards. ILRI’s approach is therefore to generate research evidence and develop solutions to improve the safety of animal products in informal food markets.

Visit the landing page to read key food safety messages as well as the latest food safety news from ILRI and information on projects and selected publications. You will also find the profiles of ILRI scientists involved in food safety research.

Join the online conversations by following the hashtags #FoodSafety, #SafeFood and #WorldFoodSafetyDay.

Photo credit: World Health Organization

Delia Grace

We congratulate Delia Grace, professor of food safety systems at the Natural Resources Institute and joint appointed scientist at the International Livestock Research Institute (ILRI), on winning the 2022 Arrell Global Food Innovation Award in the research innovation category.

Delia Grace is a renowned scientist with unique and transformative impacts on the safety of food systems and public health in developing countries.

As a trained veterinarian and epidemiologist, she brings a special expertise on the interconnectedness of animal health, human health and ecohealth to her work. A focus of her work is improving food safety in informal markets in developing countries.

‘I’m honoured to be named the recipient of the Arrell Global Food Innovation Award in the area of research impact,’ she said.

‘There is a very critical relationship between animal, human and environment health and I hope we can continue to research and find ways to help improve food safety and thus the health of humans and animals. While there is still a lot to learn, by listening and engaging, thinking and trying, we can achieve much more.’

‘Congratulations to Delia Grace Randolph for being awarded with the Arrell Global Food Innovation Award for excellence in research,’ said Evan Fraser, Arrell Food Institute Director.

‘Food safety is critical to food systems, and Delia Grace Randolph’s research in this field has clearly had a positive impact on many people.’

The mission of the Arrell Food Institute at the University of Guelph is to bring people together to conduct research, train the next generation of food leaders and shape social, industrial and governmental decisions, always ensuring food is the central priority.

The Arrell Global Food Innovation Awards are adjudicated by a group of internationally recognized scientists and community activists. This year’s adjudicators are Nadia Theodore, senior vice president, global government and industry relations, Maple Leaf Foods; Florence Lasbennes, managing director, 4SD; Lawrence Haddad, executive director, Global Alliance for Improved Nutrition; and Adrienne Xavier, acting director of the Indigenous Studies Program, McMaster University.

Browse Delia Grace’s research publications here

Photo credit: Vegetable market in Ethiopia (East African Policy Research Institute/Birhanu Lenjiso)

The rapid evolution of global food safety systems in response to population growth, urbanization, climate change and other socio-economic factors poses many food safety challenges.

Globally, unsafe food causes an estimated 600 million illnesses and 420,000 deaths annually, with Africa disproportionately bearing the highest burden of foodborne diseases.

To effectively tackle the challenge of foodborne diseases in Africa, a team of scientists from the International Livestock Research Institute (ILRI) and Ohio State University has proposed the use of risk-based and One Health approaches.

These approaches to food safety management were put forward in a presentation titled Better food safety solutions in Africa: Understanding the complex social, economic and policy perspectives. The presentation was given at the 37th World Veterinary Association Congress held in Abu Dhabi, United Arab Emirates on 29–31 March 2022.

The main foodborne hazards in the African context were discussed, with local and continental examples of food safety initiatives aimed at reducing the burden of foodborne disease and improving public health. Examples of action research and political decision-making on food safety at the continental level were also described.

In light of the complex nature of global and African food safety systems, food safety interventions to reduce foodborne diseases need to be well designed and coordinated, the researchers say.

Citation

Amenu, K., Alonso, S., Mutua, F., Roesel, K., Lindahl, J., Kowalcyk, B., Knight-Jones, T. and Grace, D. 2022. Better food safety solutions in Africa: Understanding the complex social, economic and policy perspectives. Oral presentation at the 37th World Veterinary Association Congress, 29-31 March 2022, Abu Dhabi, United Arab Emirates. Nairobi, Kenya: ILRI.

Photo credit: Vegetable market in Ethiopia (East African Policy Research Institute/Birhanu Lenjiso)

Market near Khulungira Village, in central Malawi

The role of food crops as a conduit for transmission of antimicrobial resistance from soil and water to humans has not been widely studied. Contamination of food crops with antimicrobial-resistant pathogens presents an added foodborne risk to human health.

A team of researchers from the London School of Hygiene and Tropical Medicine, the International Livestock Research Institute, the University of Copenhagen, Royal Veterinary College and CABI carried out a systematic literature review to consolidate the current state of knowledge on antimicrobial resistance in food crop value chains globally. The review is published in Frontiers in Sustainable Food Systems (3 Feb 2022).

The review summarized and compared baseline descriptive data on antimicrobial resistance detected in crops and crop inputs globally. This enabled the identification of gaps in understanding of the potential food safety risks to consumers. 

A search of four bibliographic databases using synonyms of antimicrobial resistance in food crop value chains identified 196 studies of interest from 49 countries, mostly in Asia (89 studies) and Africa (38 studies). 

The four most frequently recorded species of interest were Escherichia coli, Salmonella enterica, and Enterococcus faecium or Enterococcus faecalis. Salad crops, vegetables, and culinary herbs were the most sampled crops. 

The review found that acquired antimicrobial resistance in human pathogens is disseminated throughout food crop value chains in multiple regions around the world. 

However, there were variable patterns of distribution of antimicrobial resistance. Chloramphenicol resistance was reported in food value chain samples in low- and middle-income countries in Asia and Africa while vancomycin resistance in enterococci was reported in food crops from high-income countries.

“This review confirms the widespread reporting of resistance to antimicrobials of medical importance in human pathogenic microbes isolated from crops, both in the field and marketplace,” the authors state.

However, it is difficult to conclusively quantify the risks of exposure to consumers because of the low number of longitudinal studies and diverse sampling methods used.

“Firm conclusions cannot be drawn on the prevalence and relative importance of different kinds of resistance and antimicrobial resistance transmission pathways because of the substantial heterogeneity between study methods and conditions,” the authors caution.

“There is a need to include agriculturally-derived antimicrobial resistance in monitoring food safety risks from plant-based foods, and the challenges facing its surveillance,” the authors recommend.

Citation

Brunn, A., Kadri-Alabi, Z., Moodley, A., Guardabassi, L., Taylor, P., Mateus, A. and Waage, J. 2022. Characteristics and global occurrence of human pathogens harboring antimicrobial resistance in food crops: A scoping review. Frontiers in Sustainable Food Systems 6: 824714.

Funding

This scoping review was partially supported by the CGIAR Research Program on Agriculture for Nutrition and Health (A4NH), led by the International Food Policy Research Institute.

Photo credit: Market near Khulungira Village, in central Malawi (ILRI/Stevie Mann)

Fruit and vegetables on sale alongside other food items in a local market in Addis Ababa, Ethiopia (photo credit: ILRI/Geraldine Klarenberg).

The CGIAR Research Program on Agriculture for Nutrition and Health (A4NH) published its 2020 annual report on activities and accomplishments from its five research flagships:

  • food systems for healthier diets;
  • biofortification;
  • food safety;
  • supporting policies, programs, and enabling action through research; and
  • improving human health.

Noting that the year 2020 was dominated by the COVID-19 pandemic, A4NH director John McDermott said: “The pandemic emphasized the importance of A4NH core research strengths: One Health, nutrition, and food systems, into which gender and equity considerations are integrated as critical to improve nutrition and health outcomes. As a result, A4NH research leaders and teams were called into central roles in COVID-19 response and recovery efforts during 2020 by CGIAR as well as in programs and projects in partner countries.”

The 10-year research program ended in December 2021 as CGIAR transitions to a new research structure and portfolio from 2022.

Access the A4NH 2020 annual report or read the online version.

Photo credit: Local food market in Addis Ababa (ILRI/Geraldine Klarenberg)

International Open Access Week is an annual scholarly communication event that is marked globally during the last full week of October to raise awareness about open access publishing of research and scholarly outputs to enable their universal online accessibility. The theme of Open Access Week 2021 (25 to 31 Oct) is ‘It matters how we open knowledge: Building structural equity’.

In the field of academic and research publishing, the peer-reviewed journal article is considered as the ‘gold standard’ for quality research outputs. However, many researchers nowadays also consider preprints as important and highly relevant outputs that contribute to the body of knowledge and enable discoverability of current research developments.

A preprint is a version of a scholarly or research manuscript that precedes formal peer review, typesetting and publication in a scholarly or scientific journal. Preprints are often uploaded to online preprint servers or institutional repositories where they are freely accessible as non-typeset versions of the manuscripts.

Publishing of preprints allows researchers to quickly share new findings with their peers and receive early feedback and comments which can help in revising manuscripts for submission to a scholarly journal.

At the International Livestock Research Institute (ILRI), scientists from the Animal and Human Health program carry out collaborative research 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.

While most of their research outputs are published as peer-reviewed journal articles, the program scientists also publish their findings in other formats including books, book chapters, conference proceedings, infographics, presentations, posters, reports, theses and videos. These outputs are all indexed in CGSpace, an open access institutional repository of agricultural research outputs.

The scientists are also increasingly making use of preprints to share their research via open access. In line with the theme of Open Access Week, we present below a curated list of preprints by scientists from ILRI’s Animal and Human Health program and research partners, to highlight the contribution of these outputs to open knowledge and open science.

  • Ejigu, B.A., Asfaw, M.D., Cavalerie, L., Abebaw, T., Nanyingi, M. and Baylis, M. Assessing the impact of non-pharmaceutical interventions (NPI) on the dynamics of COVID-19: A mathematical modelling study in the case of Ethiopia. medRxiv preprint. https://doi.org/10.1101/2020.11.16.20231746
  • Kibugu, J.K., Mburu, D., Munga, L.K., Kurgat, R., Mukasa, B., Lusweti, F.N., Grace, D. and Lindahl, J. Food-borne mycotoxin hazards in the Kenyan market: A retrospective study. bioRxiv preprint. https://doi.org/10.1101/773747
  • Muloi, D., Wee, B., McClean, D., Ward, M., Pankhurst, L., Phan, H., Ivens, A., Kivali, V., Kiyonga, A., Ndinda, C., Gitahi, N., Ouko, T., Hassell, J., Imboma, T., Akoko, J., Karani, M., Njoroge, S., Muinde, P., Nakamura, Y., Alumasa, L., Öhgren, E., Amanya, F., Ogendo, A., Wilson, D., Bettridge, J., Kiiru, J., Kyobutungi, C., Tacoli, C., Kang’ethe, E., Davila, J., Kariuki, S., Robinson, T., Rushton, J., Woolhouse, M. and Fèvre, E.M. Landscape genomics of Escherichia coli in livestock-keeping households across a rapidly developing urban city. InReview preprint. https://doi.org/10.21203/rs.3.rs-172737/v1
  • Mutembei, A., Mutai, F.K., Mwololo, D., Muriuki, J., Obonyo, M., Kairu-Wanyoike, S.W., Wainaina, M., Lindahl, J., Ontiri, E., Bukachi, S., Njeru, I., Karanja, J., Sang, R., Grace, D. and Bett, B. Leptospira spp. seroprevalence in humans involved in a cross-sectional study in Garissa and Tana River Counties, Kenya. bioRxiv preprint. https://doi.org/10.1101/2020.07.17.208363
  • Njaramba, J.K., Wambua, L., Mukiama, T., Amugune, N.O. and Villinger, J. Species substitution in the meat value chain by high-resolution melt analysis of mitochondrial PCR products. bioRxiv preprint. https://doi.org/10.1101/2021.01.12.426171
  • Njeru, J., Nthiwa, D., Akoko, J., Oyas, H. and Bett, B. Incidence of Brucella spp. in various livestock species raised under the pastoral production system in Isiolo County, Kenya. bioRxiv preprint. https://doi.org/10.1101/2020.06.25.170753
  • Ogutu, H.J., Owiny, M., Bett, B. and Otieno, C. Contribution of livestock marketing chains and role played by stakeholders’ knowledge, attitude and practice in spreading cystic hydatidosis to Busia Town, Kenya, 2018. bioRxiv preprint. https://doi.org/10.1101/638502
  • Talenti, A., Powell, J., Hemmink, J.D., Cook, E.A.J., Wragg, D., Jayaraman, S., Paxton, E., Ezeasor, C., Obishakin, E.T., Agusi, E.R., Tijjani, A., Marshall, K., Fisch, A., Ferreira, B., Qasim, A., Chaudhry, U.N., Wiener, P., Toye, P., Morrison, L.J., Connelley, T. and Prendergast, J. A cattle graph genome incorporating global breed diversity. bioRxiv preprint. https://doi.org/10.1101/2021.06.23.449389 
  • Xie, S., Tao, D., Fu, Y., Xu, B., Tang, Y., Steinaa, L., Hemmink, J.D., Pan, W., Huang, X., Nie, X., Zhao, C., Ruan, J., Zhang, Y., Han, J., Fu, L., Ma, Y., Li, X., Liu, X. and Zhao, S. Rapid visual CRISPR assay: a naked-eye colorimetric detection method for nucleic acids based on CRISPR/Cas12a and convolutional neural network. bioRxiv preprint. https://doi.org/10.1101/2021.07.17.452802

Photo credit: International Open Access Week

Village women and livestock in Niger (photo credit: ILRI/Stevie Mann).

A special issue (Aug 2021) of the Scientific and Technical Review journal of the World Organisation for Animal Health (OIE) turns the spotlight on the operation of veterinary services in a world affected by various external factors such as climate change and emerging zoonotic diseases.

The COVID-19 pandemic has drawn the world’s attention to the threat of emerging zoonotic diseases and the importance of a One Health approach in preventing and responding to these and other global health challenges.

Veterinary services are a global public good underpinning animal agriculture. Therefore, governments need to ensure the sustained performance and resilience of veterinary services in the face of external factors.

The special issue was edited by three scientists from the International Livestock Research Institute (ILRI): Delia Grace (also affiliated with the Natural Resources Institute, University of Greenwich), Hu Suk Lee and Jimmy Smith.

The 18 open access articles in the special issue—10 of which were co-authored by ILRI scientists—take an in-depth look at the implications of key external factors on veterinary services; these factors include animal welfare, antimicrobial resistance, climate change, digital technologies, planetary boundaries and zoonotic disease risks.

Future-facing initiatives relevant to veterinary services, such as global nutrition security, animal health and food safety risk assessments, and sustainable development, are also discussed.

Access the special issue: Veterinary services in a changing world: climate change and other external factors, Scientific and Technical Review 40(2).

Photo credit: Village women and livestock in Niger (ILRI/Stevie Mann)

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