Mozambique, Tete province, Pacassa village

Harvested maize in Tete Province, Mozambique (photo credit: ILRI/Stevie Mann).

 

As part of celebrations in Nairobi last week to mark Europe Day 2015, the Finland-funded FoodAfrica program took part in an exhibition at the residence of the European Union Delegation to the Republic of Kenya where several project outputs were showcased.

FoodAfrica is a research and development program aimed at providing new knowledge and tools for researchers, decision-makers and farmers towards improved local food security. The program works in Benin, Cameroon, Ghana, Kenya, Senegal and Uganda.

Sara Ahlberg, a Finnish associate professional officer and PhD student attached to the International Livestock Research Institute in Nairobi, presented a poster that highlighted research approaches by the FoodAfrica program to reduce the risk of mycotoxins in the feed-dairy value chain in Kenya, namely,

  • Integrated risk and economic assessment of the Kenyan feed-dairy chain
  • Investigation of technologies and strategies to reduce mycotoxin risk in the feed-dairy chain
  • Impact assessment of a package of post-harvest strategies for reducing aflatoxins in maize

View the poster, FoodAfrica – Reducing risk of mycotoxins

Orma Boran cattle crossing a river in Kenya

Orma Boran cattle crossing a river in Kenya (photo credit: ILRI/Rosemary Dolan).

The Dynamic Drivers of Disease in Africa Consortium is a research program that works to understand the relationships between ecosystems, zoonotic diseases, health and wellbeing in order to inform effective public health interventions.

Under this program, multidisciplinary country teams are studying four zoonotic diseases: henipavirus infection in Ghana, Lassa fever in Sierra Leone, Rift Valley fever in Kenya and trypanosomiasis in Zambia and Zimbabwe. The focus is on how changes in biodiversity, land use and climate affect disease transmission.

The development of irrigation schemes is thought to influence pathogen transmission in people and animals in several ways. For example, masses of stagnant water and high humidity support the development of disease vectors like mosquitoes. In addition, irrigated areas are likely to have a higher density of animal hosts like chicken and small ruminants.

In order to investigate the influence of irrigation and changes in biodiversity on the distribution of zoonoses, a cross-sectional study was carried out in Tana River County, Kenya, home to the Hola Irrigation Scheme. The zoonoses of interest were Rift Valley fever, Q fever, brucellosis, West Nile virus, dengue fever and leptospirosis.

Irrigation causes a decline in biodiversity as wildlife habitats are cleared to make way for crop agriculture. However, the linkages between biodiversity and disease risk remain unclear. It was also found that areas with a rich diversity of hosts have higher prevalence of multiple zoonotic pathogens as compared to areas with lower host diversity.

The study also found that while irrigated areas are infested with multiple species of mosquitoes (including primary vectors of Rift Valley fever), their high population densities alone are not enough to sustain the transmission of pathogens; reservoir hosts (for example, birds for West Nile virus) or other persistence mechanisms are required.

These and other findings from the study were presented at the 49th annual scientific conference of the Kenya Veterinary Association which was held in April 2015.

View the presentation, Land use, biodiversity changes and the risk of zoonotic diseases: Findings from a cross-sectional study in Tana River County, Kenya

Hung Nguyen-Viet and Delia Grace, researchers with the Food Safety and Zoonoses program of the International Livestock Research Institute (ILRI), are among several chapter authors of a new book “One Health: The Theory and Practice of Integrated Health Approaches” published by CABI in March 2015.

ILRI Asia

Researchers at the International Livestock Research Institute (ILRI) are among the authors of a new book on One Health: The theory and practice of integrated health approaches published by CABI in March 2015.

One Health book cover ILRI’s Hung Nguyen and Delia Grace are among the contributors to this book

Hung Nguyen, a scientist with ILRI’s Food Safety and Zoonoses (FSZ) who is also a joint appointee of Hanoi School of Public Health (HSPH) and the Swiss Tropical and Public Health Institute (TPH), and Delia Grace, program leader of FSZ at ILRI, have co-written, with colleagues from research institutes in Vietnam and Switzerland, chapters on ‘One Health perspective for integrated human and animal sanitation and nutrient recycling’ and ‘Institutional research capacity development for integrated approaches in developing countries: An example from Vietnam’.

The publication, which emphasizes the role of One Health approaches in sanitation and capacity development in Vietnam, says One Health adds ‘value…

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Rinsing fresh fish in Accra, Ghana

Rinsing fresh fish in Accra, Ghana. Food safety systems need to be tailored to fit the contexts of different countries (photo credit: ILRI/Kennedy Bomfeh).

 

Every year, The Chicago Council convenes the Global Food Security Symposium to discuss the progress of the United States government and the international community on addressing global food and nutrition security. This year’s symposium, scheduled for 16 April in Washington DC, will address food systems for improved health.

In the 10-week period leading up the 2015 Global Food Security Symposium, the Chicago Council ran an online campaign, Healthy Food for a Healthy World, with one blog post being published each week to create awareness on the role of agriculture in improving global health and nutrition.

John McDermott, director of the CGIAR Research Program on Agriculture for Nutrition and Health, and Delia Grace, leader of the Food Safety and Zoonoses program of the International Livestock Research Institute, contributed to the awareness campaign through a guest commentary titled Healthy Foods Must Be Nutritious, Safe and Fair.

In their commentary, they argue that to provide nutritious, safe and fair food to all, food safety systems must be tailored for different national and sub-national contexts.

“In an increasingly globalized world, there are dramatic differences in food systems. Policymakers and the public often assume that one universal system should apply everywhere. But what is good for the rich may be bad for the poor and vice versa.”

They also put forward three key lessons for adapting food safety systems, namely, aligning incentives with policy objectives, adopting risk-based approaches to food safety and developing capacity in food safety governance and practice.

To take part in the online discussions, follow @GlobalAgDev on Twitter, join the discussions using #GlobalAg or tune in to the live stream of the event on 16 April.

The following is an excerpted version of a blog post originally published on the CGIAR Research Program on Agriculture for Nutrition and Health (A4NH) website.


Some of the foods that would most enhance nutrition in diets in the developing world are also the riskiest in terms of food safety. Numerous health risks exist along the value chain for livestock and fish products, from production to consumption. In this post, Sophie Theis (Research Analyst, Poverty, Health, Nutrition Division, International Food Policy Research Institute) and Delia Grace (Program Manager, International Livestock Research Institute) relate findings from a recent A4NH/International Livestock Research Institute analysis of 20 livestock and fish value chains in Africa and Asia that reveal how gender differences in value chain participation influence risk exposure.

The results from the participatory risk assessment of these value chains are published in Grace et al. (2010) and a paper analyzing the gendered dimensions of risk is underway by Delia Grace, Sophie Theis, Kristina Roesel, Erastus Kang’ethe and Bassirou Bonfoh.

Selling milk

Selling milk in Ethiopia (photo credit: ILRI).

In rural Mali, a Fulani herder finishes milking a cow and hoists the calabash to his head, the milk sloshing gently in the vessel as he carefully carries the milk to Mariam, the woman he works for. By custom, Mariam has never milked a cow, but once the milk is in her domain, she is in charge of its business and use. Today she decides to keep this calabash for the family, since she has been able to sell milk at a favorable price often in the past week. She sets most aside to naturally sour, which will preserve it in the absence of refrigeration; the fermentation gives a sharp taste that consumers find thirst quenching in the hot season.

In the outskirts of Nairobi, Faith works the udders of her dairy cow. A male relative she has hired to help with the milking approaches with another pail of milk. She accepts it absentmindedly; she is already estimating the prices she will get selling the milk to neighbors and the local milk bar and considering whether she should invest the revenues in hiring another person.

In rural Mali, periurban Kenya, and many other parts of Africa, women play important and varied roles in livestock and fish value chains. The milk that Mariam and Faith helped to produce goes both to their families and to the market; it is also valued as gifts and in Mali as a sacrifice that brings blessing and protection against evil.

The decisions that Mariam and Faith make have bearings on many people’s nutrition: the quantity of milk that they keep for their household, how they apportion milk amongst household members, the use of the income from milk that they sell, and – less often acknowledged, but critical – the extent to which they effectively manage food safety risk, preventing contamination of the milk.

Many of the most nutritious foods, including animal source foods, are amongst the riskiest in terms of pathogen transmission. Meat, milk, fish and eggs provide plenty of nutrients for pathogenic organisms and can also carry infections from animals that harbor them to people. Food-borne disease persists as a major public health problem in Africa and Asia, where the majority of these foods are produced by smallholders, marketed through the informal sector, and sold in wet markets.

Food safety in these products is a major concern, as informal markets are important sources of food for the poor and tend to provide food that is more accessible, affordable, and compatible with local preferences for certain varieties of food and quantities than supermarkets.

Women like Mariam and Faith manage risk as they interact with informal markets by selling and buying food for their households. Informal value chains are complex, shaped by a number of actors. While risk management training interventions tend to focus on the owners of livestock or on actors only in one node of the value chain (e.g. butchers), risk management relies on all the actors along the value chain, from production, aggregation, processing, retail, and consumption. Many of these actors are women, and attention to local norms in the division of labor is critical for targeting food safety assessments and interventions.

Read the complete blog post on the A4NH website

Testing milk in Kenya's informal market

Testing milk in Kenya’s informal market (photo credit: ILRI/Dave Elsworth).

 

World Health Day is celebrated on 7 April every year to mark the anniversary of the founding of the World Health Organization (WHO) in 1948. Each year, a theme is selected to highlight a priority area of public health. The theme for World Health Day 2015 is food safety, with the slogan “From farm to plate, make food safe”.

An estimated 2 million people die every year from contaminated food or drinking water. Over 200 diseases are caused by unsafe food containing harmful bacteria, parasites, viruses and chemical substances. New data on the harm caused by foodborne illnesses underscore the global threats posed by unsafe foods, and the need for coordinated, cross-border action across the entire food supply chain.

The Food Safety and Zoonoses program of the International Livestock Research Institute (ILRI) carries out research on food safety in informal markets to support intensifying livestock production by building capacity for better management of the safety of animal food products.

As we celebrate this year’s World Health Day, we invite you to read some recent blog posts on food safety research by ILRI and partners:

In April 2010, Miyazaki prefecture in Southwest Japan experienced an outbreak of foot-and-mouth disease, one of the most contagious animal diseases. Although the outbreak was successfully contained in just four months, by July 2010 there were 292 cases and 300,000 cows and pigs had been slaughtered. This resulted in an economic loss of about 2 billion US dollars.

In addition to the economic impact of the epidemic, the mental and psychosocial well-being of individuals and the community at large was also affected. For example, the sudden death of large numbers of animals caused considerable mental stress among farmers as well as the veterinarians and municipal government teams involved in the slaughter and disposal of infected cattle and pigs.

Restrictions on movement were imposed as part of efforts to prevent the disease from spreading; this led to stress-related symptoms among some residents, particularly the elderly. In addition, many farmers experienced depression and anxiety about the future following the loss of their livelihoods.

Recognizing the multiple impacts of the disease epidemic, a coordinated multisectoral approach was adopted, under the One Health concept, to tackle the disease as well as manage the mental health and psychological well-being of the residents of Miyazaki.

In a video titled Responding to an animal disease epidemic: Lessons from Miyazaki, various stakeholders who were involved in responding to the epidemic reflect on the usefulness of a One Health approach in helping to successfully respond to and overcome the challenges of the disease outbreak.

Featured in the video is Kohei Makita, an associate professor of veterinary epidemiology at Rakuno Gakuen University who is on a joint appointment at the International Livestock Research Institute (ILRI). Makita and colleagues had earlier published work on the collaborative response of veterinary and psychiatry experts to the 2010 foot-and-mouth disease outbreak.

The video was produced by the World Bank Tokyo Development Learning Center, the United Nations University International Institute for Global Health, the National Center for Neurology and Psychiatry, Japan and Rakuno Gakuen University.

Aflatoxin-contaminated groundnut kernels

Aflatoxin-contaminated groundnut kernels from Mozambique (photo credit: IITA).

Among the many research projects carried out by the Food Safety and Zoonoses program of the International Livestock Research Institute (ILRI) is one that aims to reduce the risk of mycotoxins in the feed-dairy value chain in Kenya so as to improve food safety and safeguard the health of consumers of maize and dairy products.

The project is developing cost-effective and incentive-based mycotoxin control strategies and solutions for use by poor farmers and other actors within the feed-dairy chain.

Mycotoxins are poisonous metabolites produced by various species of moulds. Aflatoxins are cancer-causing mycotoxins produced by the mould Aspergillus flavus.

Aspergillus can grow in a wide range of foods and feed and thrives under favourable growth conditions of high temperature and moisture content.

The main activities of the project are:

  • risk assessment of the Kenyan feed-dairy chain to identify the best control options and provide risk managers with information for decision-making
  • assessment of the economic costs of aflatoxins in Kenya’s dairy value chain and examination of the cost effectiveness of mitigation strategies
  • investigation of technologies and strategies to reduce mycotoxins risk in the feed-dairy chain
  • impact assessment of a package of post-harvest strategies for reducing aflatoxins in maize
  • dissemination of evidence and building capacity of local researchers and postgraduate students through participation in designing surveys, fieldwork and data analysis

The project also applies participatory methods to develop and test strategies to mitigate the risk of mycotoxins in the feed-dairy chain.

These participatory methods engage farmers in action research on their fields so they can learn and adopt new technologies and disseminate the knowledge to other farmers.

The project is hosted in the aflatoxin research platform of the Biosciences eastern and central Africa (BecA) Hub at ILRI’s headquarters in Nairobi. The platform was set up to provide African scientists and their research partners access to state-of-the-art facilities for nutritional and aflatoxin analysis.

The February 2015 issue of the Aflatoxin Partnership Newsletter, published by the Partnership for Aflatoxin Control in Africa, highlights the aflatoxin platform in an article by Jagger Harvey, a senior scientist at the BecA-ILRI Hub.

Since its establishment in 2011, the platform has hosted work of more than 60 researchers from seven African countries, Australia, Europe and North America,” writes Harvey.

“Collectively, the community around the laboratory has made initial assessments of aflatoxin contamination in a number of countries, conducted the first inoculated field trials in the region to identify maize varieties less susceptible to aflatoxin accumulation, developed models estimating aflatoxin risk at harvest and produced a range of other important findings and tools which are beginning to reach end users to help ensure safer food and feed for Africa”.

CGIAR Research Program on Livestock and Fish

Pig feed trials - diet formulationPig feed trials _ animal weighing
Research assistants chopping jackfruit (left) and weighing a feed trial pig (right) at Kamuzinda Farm, Uganda (photo credit: ILRI/Natalie Carter).

Pig production in Uganda is on the rise. The number of pigs in the country stood at 3.2 million in 2011 (based on a livestock census) from about 200,000 thirty years ago. A rise in the country’s population and incomes has triggered an upsurge in pork consumption. The per capita pork consumption of Uganda was 3.4 kg per person per annum in 2011, the highest in the East Africa region. Most of the pork consumed in the country is supplied by smallholder producers in over 1 million households, with women playing a central role in pig farming.

These figures, however, disguise challenges in the sector including diseases and parasites, unreliable markets, inadequate extension services and most importantly, poor quality and unavailability of pig feeds.

A 2013 value chain assessment conducted by the International…

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Orma Boran cattle crossing a river in Kenya

Orma Boran cattle crossing a river in Kenya. Rift Valley fever can infect both cattle and people (photo credit: ILRI /Rosemary Dolan).

The International Livestock Research Institute (ILRI) has published a discussion paper on a study carried out to identify the successes and challenges associated with the use of a Rift Valley fever decision support tool in Kenya.

The decision support tool was developed by various stakeholders from government and non-government sectors following the 2006-07 outbreak of Rift Valley fever in East Africa. It identifies events leading to the disease outbreak and matches them with interventions that could be implemented at each point.

The study involved three activities:

  • a review of literature to describe systems that could be used with the decision support tool and to identify how other frameworks have been used to support disease control policies
  • focus group discussions and key informant interviews with farmer groups, local and international organizations and decision-makers in the Department of Veterinary Services
  • a stakeholder workshop to validate the findings obtained and develop recommendations on ways to improve awareness and utilization of the framework

Download the discussion paper

Citation
Mbotha, D. and Bett, B. 2015. Utilization of the Rift Valley fever decision support tool in Kenya: Successes and challenges. ILRI Discussion Paper 28. Nairobi, Kenya: ILRI.