Tag Archives: FMD

Assessing animal diseases: New paper urges use of value chain analysis and information economics to understand animal disease impacts

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Mozambique, Chokwe, Lhate village

Cows standing in the compound after grazing in Chokwe, Mozambique. A new study calls for improved integration between epidemiology and economics to understand economic and poverty impacts of animal diseases (photo credit: ILRI/Mann)

A new study by researchers working with the International Livestock Research Institute (ILRI) is recommending use of ‘bottom-up’ approaches that use the strengths offered by value chain analysis and information economics in assessing the impacts of animal diseases and their interaction with socio-economic and institutional factors in developing countries.

Authors Karl Rich, from the Norwegian Institute of International Affairs (NUPI) and on joint appointment with ILRI and Brian Perry, an honorary professor of veterinary medicine at the Universities of Edinburgh and Pretoria and formerly a leader of ILRI’s research team on animal health and food safety for trade, say economists and epidemiologists need to work more closely in assessing the impact of animal diseases. They recommend use of ‘participatory disease surveillance’ approaches that feature models of disease assessment that consider the context in which animal diseases occur and how they affect markets, livelihoods and poverty reduction especially in developing countries where livestock serve diverse commercial and cultural roles which affect disease control efforts.

In a paper ‘The economic and poverty impacts of animal diseases in developing countries: New roles, new demands for economics and epidemiology’ published in the 15 September 2010, online edition of the Preventative Veterinary Medicine journal, the scientists say both value chain analysis and information economics hold particular promise and relevance towards animal disease impact assessment.

They note that ‘normative’ approaches that try to guide how agents affected by diseases should behave (for example by emphasizing elimination of disease while relegating issues of disease mitigation, equity, gender and poverty) have had limited success in reducing poverty and disease prevalence in developing countries. The scientists suggest that new models that consider the context decision makers, farmers and value chain actors face in the event of animal disease outbreaks and what they actually do (not only what they should do) will contribute to more effective pro-poor policymaking.

The paper also recommends harmonizing divergent incentives among different stakeholders in developing countries noting that, for example, integrating the views of political economy and institutions engaged in animal health research will help to focus more broadly and systematically on incentives and the behaviour of those institutions and political actors, thereby helping researchers to better understand the economic impact of diseases.

The paper reviews the livelihoods and poverty impacts of animal diseases in the developing world, with a focus on Rift Valley fever, highly pathogenic avian influenza (HPAI) and foot and mouth disease. The paper also analyses the effects of these diseases through a poverty and value chains perspective and highlights ways that lessons from these perspectives can be aligned with disease control initiatives.

Rift Valley fever outbreaks are common in eastern Africa, especially after heavy rains, which lead to rises in numbers of mosquitoes that spread this viral zoonotic disease. Rift Valley fever affects cattle, sheep, goats and camels but also infects and kills humans. A recent outbreak of the disease between 2006 and 2007 killed more than 100 people in Kenya and led to significant loss of animals and livelihoods, especially for pastoralist livestock keepers.

Rich and Perry say the response of different stakeholders to diseases is based on their unique circumstances and constraints and their incentive for compliance also depends on such contexts. Their paper stresses the importance of ‘improved integration between epidemiology of disease and its relationships with economic behaviour.’

The authors call for a holistic look at the livestock sector as a system of interacting actors, each with their own values and constraints. They say that frameworks such as those offered by value chains can help identify the impacts that animal diseases generate. The  value chain framework’s emphasis on relationships, characteristics and dynamics among actors, can help identify not only who is impacted by animal disease but also how and why they are affected and how  different actors might behave and adjust in response to disease outbreaks.

To read the complete paper and its recommendation, click here

This piece is adapted from an original story posted on the Market Opportunities Digest blog written by Tezira Lore, communications specialist for ILRI’s Markets Theme.

How livestock diseases and their control impact poor people

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This themed issue of Philosophical Transactions B, provides an overview of some of the issues relating to infectious diseases of livestock.

At the beginning of the 21st Century, the world is faced with a changing landscape of infectious diseases that affect man and animals. Most livestock pathogens that emerge and re-emerge are capable of being transmitted to man and an increasing number are distributed by insect vectors. Globalisation defines the world of pathogens and the recent emergence and spread of swine flu provides a topical illustration of the threats presented by zoonotic viruses that can be moved rapidly around the world by the occupants of our ‘global village’. Whilst distribution via air transport represents an extreme, the transmission of pathogens by insect vectors is increasingly linked to the effects climate change and new vector-borne diseases, such as bluetongue, are now occurring for the first time in Northern Europe.

However, old and persistent diseases remain in most parts of the world must be dealt with. Some, such as foot and mouth disease, present significant ongoing restrictions to national and international trade and may have devastating financial impacts when they are introduced in to FMD-free areas.

The future looks to be much, much more of the same. The scientific community will need to be fleet-of-foot to deal with some unexpected disease threats and the world of zoonotic infections will drive the animal and human disease research specialists to work closer together.

A ‘One Medicine’ way of working will be increasingly necessary to optimise control of disease at the livestock-man interface and all major livestock diseases will need to be considered for their potential to interrupt or damage the pipeline of food supplies – especially if effective control is lost.

This special issue includes articles by ILRI scientists Brian Perry and Delia Grace and another by  Solenne Costard et al. They describe the impacts of livestock diseases and their control on growth and development processes that are ‘pro-poor’.

Taking a value-chain approach that includes keepers, users and eaters of livestock, they identify diseases that are road blocks on ‘three livestock pathways out of poverty’. They discuss livestock impacts on poverty reduction and review attempts to prioritize the livestock diseases relevant to the poor. They note that a high impact of a disease does not guarantee high benefits from its control and recommend taking other factors into consideration, including technical feasibility and political desirability.

They conclude their paper by considering how we might better understand and exploit the roles of livestock and improved animal health by posing three speculative questions on the impact of livestock diseases and their control on global poverty:
(1) How can understanding livestock and poverty links help disease control?
(2) If global poverty reduction were the aim of a livestock disease control program, how would that program differ from our current model?
(3) How much of the impact of livestock diseases on poverty is due to disease control policies rather than the diseases themselves?

Developing-country farmers to benefit from new foot-and-mouth disease ‘road map’

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A major new report launched today charts a pathway towards the effective control of foot-and-mouth disease (FMD) in developing countries where the disease is a serious and growing threat.
The report, ‘Global Road Map for Improving the Tools to Control Foot-and-Mouth Disease in Endemic Settings’, launched today (17 April 2007) at the headquarters of the United Nations Food and Agriculture Organization (FAO), in Rome, envisions ‘a world in which livestock-based livelihoods, enterprises and trade can flourish unimpeded by FMD’. The road map focuses on the outputs of a workshop held in Agra, India, in December 2006.

Efficacious vaccines, strategically deployed, have revolutionized control of many infectious human and animal diseases. For FMD, which severely constrains the welfare of millions of small-scale livestock farmers in the developing world, currently available vaccines do not meet many of the basic requirements necessary for sustainable control. FMD continues to be a persistent constraint to livestock production throughout the developing world. It can significantly reduce production of milk and meat and limits the ability of draft animals to work.

Foot-and-Mouth Disease (FMD): Quick Facts

Foot-and-mouth disease (FMD) affects cloven-hoofed animals and is one of the most contagious diseases of mammals, with great potential for causing severe economic loss. FMD is endemic in parts of Asia, Africa, the Middle East and South America.
Hosts: Principally cattle, domestic buffaloes, yaks, sheep, goats, domestic and wild pigs and wild ruminants.
Transmission: Direct or indirect contact; animate vectors (humans, etc.); inanimate vectors (vehicles, implements); airborne, especially in temperate zones (up to 60 km overland and 300 km by sea).
Sources: Incubating and clinically affected animals; breath, saliva, faeces, and urine; milk and semen; meat and by-products and carriers, particularly cattle and water buffalo; convalescent animals and exposed vaccinates (virus can persist for up to 30 months in cattle or longer in buffalo, 9 months in sheep).

Source: Excerpted from World Organisation for Animal Health (OIE) Animal Diseases Data www.oie.int

According to John McDermott, deputy director general for research at the International Livestock Research Institute (ILRI), ‘FMD is a major obstacle to productivity and market access in many of ILRI’s target regions, particularly South Asia, the Horn of Africa and southern Africa. It severely limits market opportunities for poor farmers and nations wishing to access more lucrative markets, both regionally and internationally.

‘FMD also can increase the vulnerability of small-scale farmers in mixed cropping systems where animal traction is important. For example, in Southeast Asia where rice is a staple, people are heavily reliant on water buffalo for ploughing. A FMD outbreak leaves the buffalo open to secondary infections, putting these highly valued animals out of action for a very long time.’

Brian Perry, who recently retired as senior scientist at ILRI and is now collaborating with ILRI on this and other projects, says, ‘There is an urgent and long overdue need to address the special research needs of poor people in endemic FMD settings. Current research on vaccines and associated tools for the control of FMD is driven more by the needs of relatively rich FMD-free countries which are dealing with and eliminating incursions of the disease, rather than by the needs of relatively poor FMD-endemic countries which are interested in longer-term management and control of the disease.’

In early 2006, Perry, ‘navigator’ of the FMD ‘Roadmap’ process, approached the Wellcome Trust (UK) to seek support for an initiative to tackle this need. Following submission of a joint proposal from ILRI and the UK’s Institute for Animal Health (IAH), the Wellcome Trust (UK) agreed to provide partial funding and, with the support of additional donors—notably the European Union—planning was begun to organize the meeting that became the launch pad of the ‘Global Road Map for Improving the Tools to Control Foot and Mouth Disease in Endemic Settings’.

‘We decided at an early stage that the road map workshop should be held in an FMD-endemic country’, says Keith Sones, workshop facilitator and co-editor of the report. ‘India, with its impressive and ambitious ongoing program to control FMD, was an obvious choice. The Indian Council of Agricultural Research (ICAR) was very supportive and agreed to host the workshop in Agra.’

According to VK Taneja, deputy director general of animal scrence at ICAR, ‘Livestock production in India is growing faster than arable agriculture. The value of output from the livestock sector has risen over the years and is now 26% of the total value of output from agriculture. It is predicted that livestock will contribute more than half of the total agricultural output in the next 25–30 years.’

‘One of the biggest impediments to growth of the livestock sector is the large-scale prevalence of FMD’, says Taneja. ‘In most Asian countries, FMD is endemic and severely limits the region’s ability to participate in international trade. Developmental strategies for control and eradication of FMD—including improving existing conventional vaccines and diagnostics for their quality and efficacy—will pave the way for the improved growth and productivity of livestock, especially in small-farm production systems, and for ensuring their participation and access to global markets.’

While the economic losses associated with major outbreaks of FMD in industrial countries, notably in Europe in 2001, grabbed world headlines, the disease continues to cause enormous, recurrent losses across large swathes of Asia, Africa, the Middle East and South America.

‘The direct losses alone due to FMD in India are estimated to be more than USD4.5 billion per year; indirect production losses could be much more’, says Dr R Venkataramanan, principal scientist at the Indian Veterinary Research Institute, in Bangalore.

‘The Roadmap report recognizes that vaccines currently available for the control of FMD are not ideal for use in many developing countries’, says Perry. ‘To remain effective they must be kept under constant refrigeration, so the protection they offer is better suited to the needs of FMD-free countries rather than countries where the disease is a constant and daily threat. We realize that it will take considerable time to develop and make available new improved vaccines suitable for developing- country conditions. But in the meantime much can be done with current vaccines and diagnostics, especially if their use is complemented with sound epidemiological and economic decision-support tools to guide and facilitate their effective use.’

Alexander Müller, FAO Assistant Director-General, declares that ‘FAO is ready to support this important initiative, which is expected to provide some of the breakthroughs needed for use in the most affected areas, and which will support the efforts of FAO with the World Organisation for Animal Health (OIE) to reduce FMD risk by promoting progressive control of FMD at all levels. The initiative from the research community is strongly needed and we are happy to play our role in launching this initiative and facilitating transfer of effective new approaches.’

Work undertaken after the Agra workshop ensured that research proposals were developed for funding high-priority areas identified during the workshop. Lead writers facilitated development of concept notes to be submitted to donor agencies in the fields of immunology, vaccine design and epidemiological and economic tools. In addition, some regional concept notes were developed focussing on southern Africa, South and Southeast Asia and South America. These draft concept notes are included in the road map report and provide guidance on further development of the tools for FMD control. Using the products of the road map process, ILRI and partners are now developing a project proposal that, once funded, will move the world closer to the vision of ‘a world in which livestock-based livelihoods, enterprises and trade can flourish unimpeded by FMD’

India

Participants of the Global Road Map for Improving the Tools to Control Foot-and-Mouth Disease in
Endemic Settings workshop held at Agra, India, 29 November – 1 December 2006

Download the FMD Road Map report

Citation: Perry BD and Sones KR (eds). 2007. Global road map for improving the tools to control foot-and-mouth disease in endemic settings. Report of a workshop held at Agra, India, 29 November–1 December 2006, and subsequent road map outputs. ILRI (International Livestock Research Institute), Nairobi, Kenya. pp. 88

Increasing developing-country livestock trade without increasing disease

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Livestock sellers in Mozambique

Are there opportunities for greater trade of livestock products from developing countries without increasing the risk of spreading animal diseases?

A new study from the International Livestock Research Institute (ILRI) and the Food and Agriculture Organization of the United Nations (FAO) suggests that there are and lays out a series of recommendations as to how they might be achieved. Livestock is one of the key assets of most developing countries, but compared to other agricultural products, this resource is currently significantly underutilised as a tool for poverty reduction. One of the reasons behind this is that many developing countries still harbour animal diseases that present a risk to the West, where diseases such as foot and mouth disease (FMD) and classical swine fever (CSF), to name but two, have been eradicated. Their reintroduction to countries free of these diseases has disastrous economic and environmental consequences. This dichotomy presents yet another example of the widening divide between developed and developing countries. So how can developing countries make better use of their livestock resources through greater market access in the world without putting developed countries at greater risk? This topic has been the subject of a study recently undertaken by ILRI on behalf of FAO, the report of which was released in July 2005.

Entitled ‘An appropriate level of risk: balancing the need for safe livestock products with fair market access for the poor’, the report questions some of the ground rules for safe international trade in livestock commodities, while at the same time identifying specific needs for human resource capacity development to safeguard the animal health and food safety integrity of livestock commodity value chains. Led by ILRI’s veterinary epidemiologist Brian Perry, the study identified some market successes, and some failures, in the regions of South East Asia, eastern and southern Africa and Central America, drawing from them some key lessons of global significance.

Read the complete report: http://www.fao.org/ag/againfo/programmes/en/pplpi/docarc/wp23.pdf