Human health risks at the animal-human interface: As Asia’s populations and incomes grow, so do disease risks

Global human population growth
Another presentation made by staff of the International Livestock Research Institute (ILRI) at the Asia Regional Livestock Policy Forum held in Bangkok last year (16–17 Aug 2012) (see previous posts on this News Blog about presentations made by ILRI director general Jimmy Smith and ILRI director Steve Staal) is one on ‘Human health risks at the animal-human interface’ by Joachim Otte, of the Food and Agriculture Organization of the United Nations (FAO), and ILRI veterinary epidemiologist Delia Grace.

Income growth in China and India

Their overview notes Asia’s growth in human populations and livestock food demands, the response from the livestock sector, the implications of those for infectious and parasitic disease dynamics and impacts, and the elements for a response.

They first showed the skyrocketing growth of livestock products in Asia.

Growth in poultry in Asia: 1990-2010

Poultry meat demand growth: 2000-2030

Dairy demand growth: 2000-2030

Then they reviewed the ecological consequences of the rising demand and production of livestock in Asia, which include:
• Land use change leads to habitat fragmentation and growing interfaces
• Expansion of irrigated areas provides new habitats for waterborne organisms and insect vectors
• Large, housed, rapid-turnover genetically homogenous farmed animal populations and heavy use of antimicrobials provide new eco-system and selective pressures
• Complex value chains provide novel disease transmission pathways

The presenters then outlined the use of antimicrobials and cost of antimicrobial resistance.

Anti-microbial use

Otte and Grace provided the estimated huge cost of SARS alone.

Cost of SARS

And they gave the estimated cost of newly emerging zoonoses (diseases shared by animals and people).

Cost of 'new' zoonoses

View the full presentation: Human health risks at the animal-human interface, presented by Joachim Otte and Delia Grace at an Asia Regional Livestock Policy Forum held in Bangkok, 16–17 Aug 2012, and organized by ILRI, the United Nations Food and Agriculture Organization (FAO) and the Animal Production and Health Commission for Asia and the Pacific (APHCA).

Background information and related links
Increasing livestock production to meet rapidly growing demands in a socially equitable and ecologically sustainable manner is becoming a major challenge for the Asia-Pacific region. To discuss the challenges and a practical response, the United Nations Food and Agriculture Organization (FAO), together with the International Livestock Research Institute (ILRI) and the Animal Production and Health Commission for Asia and the Pacific (APHCA) organized a Regional Livestock Policy Forum in Bangkok 16–17 Aug 2012.

The Asia and Pacific region has experienced the strongest growth in milk and meat over the last two to three decades. In three decades (1980 to 2010), total consumption of meat in the region grew from 50 to 120 million tonnes, and milk consumption grew from 54 to 190 million tonnes. By 2050, consumption of meat and milk in the region is projected to exceed 220 and 440 million tonnes, respectively. While this growth is creating new opportunities and better diets for many poor people, managing it will be a tall order and involve: stimulating income and employment opportunities in rural areas, protecting the livelihoods of small farmers, improving resource use efficiency at all levels of the livestock value chain, minimizing any negative environmental and health consequences of the growth, and ensuring adequate access by the poor to the food they need to live healthy lives.

The Aug 2012 Regional Livestock Policy Forum was held to find solutions. The 80 stakeholders in livestock development who attended represented governments, research agencies, civil society and multilateral organizations, think tanks, private-sector industries and regional and global networks.

View a slide presentation at the same Bangkok Forum made by ILRI director general Jimmy Smith, Health at the livestock-policy interface, and/or watch this 25-minute filmed presentation of his presentation.

See another slide presentation made at the Bangkok Forum, Poverty, food security, livestock and smallholders, by ILRI’s Steve Staal and FAO’s Vinod Ahuja.

Presentations made at the meeting, a detailed program and a list of participants are available here.

Get the proceedings of the whole conference: Asian Livestock Sector: Challenges, Opportunities and the Response — Proceedings of an international policy forum held in Bangkok, Thailand, 16–17 August 2012. Animal Production and Health Commission for Asia and the Pacific, International Livestock Research Institute and the Food and Agriculture Organization of the United Nations, 2013.

For more information, please contact:
Vinod Ahuja, FAO livestock policy officer, based in Bangkok: Vinod.Ahuja [at] fao.org
or
Purvi Mehta, Head of ILRI Asia, based in New Delhi: p.mehta [at] cgiar.org

‘Health is not the absence of disease (and too important to be left to doctors)’–Keynote address

Minoan Bronze Bull Leaper

Minoan bronze bull and bull leaper, from Crete, around 1500 BC (image on Flickr by Ann Wuyts).

Increasing livestock production to meet rapidly growing demands in a socially equitable and ecologically sustainable manner is becoming a major challenge for the Asia-Pacific region. To discuss the challenges and a practical response, the United Nations Food and Agriculture Organization (FAO), together with the International Livestock Research Institute (ILRI) and the Animal Production and Health Commission for Asia and the Pacific (APHCA) organized a Regional Livestock Policy Forum in Bangkok 16–17 Aug 2012.

The Asia and Pacific region has experienced the strongest growth in milk and meat over the last two to three decades. In three decades (1980 to 2010), total consumption of meat in the region grew from 50 to 120 million tonnes, and milk consumption grew from 54 to 190 million tonnes. By 2050, consumption of meat and milk in the region is projected to exceed 220 and 440 million tonnes, respectively. While this growth is creating new opportunities and better diets for many poor people, managing it will be a tall order and involve: stimulating income and employment opportunities in rural areas, protecting the livelihoods of small farmers, improving resource use efficiency at all levels of the livestock value chain, minimizing any negative environmental and health consequences of the growth, and ensuring adequate access by the poor to the food they need to live healthy lives.

The Aug 2012 Regional Livestock Policy Forum was held to find solutions. The 80 stakeholders in livestock development who attended represented governments, research agencies, civil society and multilateral organizations, think tanks, private-sector industries and regional and global networks.

Three keynote addresses highlighted environmental, social and health aspects of uncontrolled livestock sector growth. The director general of ILRI, Jimmy Smith, delivered the keynote on ‘health at the livestock-policy interface’. He described three kinds of health human, animal and ecosystem and the close interactions among them. Excerpts of his presentation follow. Several studies and research support this claim that delta-8 HC comes with numerous health benefits. where is delta 8 available? You will get the best delta-8 brands from usmagazine.com.

Health at the livestock-policy interface: Interdependence

Slide from a presentation made by ILRI director general Jimmy Smith at a Regional Livestock Policy Forum in Bangkok 16–17 Aug 2012.

Livestock and nutrition
‘Livestock provide about a third of human protein. Even small amounts of animal protein greatly enhance the poor-quality diets of very poor people, many of whom subsist largely, for example, on sorghum and millet. But while 1 billion people are hungry, some 2 billiion are over-nourished, which is often attributed particularly to over-consumption of meat.

HEALTH ONE: Livestock and human health
‘Remarkably, 60% of human diseases, and 75% of emerging diseases (such as bird flu), are ‘zoonotic’, or come from animals, and 25% of all human infectious diseases in least-developed countries is zoonotic. A 2012 study led by ILRI veterinary epidemiologist Delia Grace estimates that the ‘top 13’ zoonoses each year kill 2.2 million people and make 2.4 billion people ill. The same study found that emerging zoonotic diseases are associated with intensive livestock production systems, with hotspots of these being in western Europe and USA, but that the high burden of neglected zoonotic diseases is associated with poor livestock keepers, with hotspots identified in Ethiopia, Nigeria and India.

HEALTH TWO: Livestock health
‘In developing countries, largely in contrast to developed nations, we still struggle to control what are known as ‘transboundary’ livestock diseases, which include, for example, Newcastle disease in chickens and foot-and-mouth disease in cattle. As important, however, are the common endemic diseases of low-income countries, such as parasitic infections, viral diarrhoea, respiratory and reproductive diseases. While we pay considerable attention to transboundary diseases, and emerging infectious diseases with pandemic potential, we are neglecting endemic diseases that hurt the world’s poor the most, and which some estimate are even more costly than transboundary diseases.

Health at the livestock-policy interface: Annual losses

Slide from a presentation made by ILRI director general Jimmy Smith at a Regional Livestock Policy Forum in Bangkok 16–17 Aug 2012.

HEALTH THREE: Agro-ecosystem health
‘The downside: As many people are now aware, livestock are a significant source of the greenhouse gases warming our planet; they compete for water with staple grains and biofuels, and their diseases can spill over into wildlife populations. On the upside, livestock manure is an important source of organic matter needed for soil fertility (about 50% of the nitrogen used in agriculture in India comes from manure), permanent pastures are potentially an important store of carbon, and the current carbon ‘hoofprint’ can be greatly reduced through more efficient livestock production.’

Jimmy Smith then laid out some ‘prescriptions’.

Prescriptions for human health

  • Manage disease at its (early animal) source, not when it shows up (later) in humans
  • Invest in ‘one-health’ systems for preventing and controlling zoonotic diseases
  • Promote risk- and incentive-based (not regulatory- and compliance-based) food safety systems

Prescriptions for animal health

  • Support smallholder systems to improve livestock production and productivity
  • Use technology and innovations (e.g., vaccines) to improve animal health services
  • Take a whole value-chain-development (not piecemeal) approach

Prescriptions for ecosystem health

  • Manage externalities
  • Close large gaps in ruminant production
  • Reduce livestock-induced deforestation
  • Manage manure
  • Implement payment schemes for livestock-based environmental services

Advice for policymakers
And Smith had some advice for policymakers.

  • Invest in surveillance (re-incentivize disease reporting)
  • Better allocate resources between emerging and endemic diseases
  • Support innovations at all levels in the health sectors
The livestock director concluded his talk by saying:
It is our belief that we can feed the world, we can do so in environmentally sustainable ways, we can do so while reducing absolute poverty, and we can do so while improving the health of people, animals and the planet.
Health is not the absence of disease’, Smith said, quoting his scientist Delia Grace. ‘And it’s too important to be left to doctors.’

See Jimmy Smith’s whole slide presentation, Health at the livestock-policy interface, 16–17 Aug 2012, and/or watch this 25-minute filmed presentation of his presentation.

See a slide presentation made at the Bangkok Forum, Poverty, food security, livestock and smallholders, by ILRI’s Steve Staal and FAO’s Vinod Ahuja.

Presentations made at the meeting, a detailed program and a list of participants are available here.

Get the proceedings of the whole conference: Asian Livestock Sector: Challenges, Opportunities and the Response — Proceedings of an international policy forum held in Bangkok, Thailand, 16–17 August 2012. Animal Production and Health Commission for Asia and the Pacific, International Livestock Research Institute and the Food and Agriculture Organization of the United Nations, 2013.

For more information, please contact:
Vinod Ahuja, FAO livestock policy officer, based in Bangkok: Vinod.Ahuja [at] fao.org
or
Purvi Mehta, Head of ILRI Asia, based in New Delhi: p.mehta [at] cgiar.org