Worries rise over outbreaks of avian flu in West Africa

Fears are growing that without timely intervention to stem outbreaks of the highly virulent avian flu virus H5N1 across West Africa, further spread across the region and beyond is inevitable, the Food and Agriculture Organisation (FAO) said today. To this end, the agency is calling for $20 million for prevention and response activities.

The call follows outbreaks of the virus in poultry farms, markets and family holdings in Nigeria, Burkina Faso, Niger, Cote d’Ivoire and Ghana.

The outbreak comes as countries across West Africa are still recovering from and in some cases still battling, Ebola. Avian flu could trigger sudden deaths and decline in in the population of chicken – a nutritious and inexpensive source of food for many people– with detrimental impacts on diets and on the economy of the region, exacerbating an already difficult situation.

Previous strains of the virus - known to be highly virulent to poultry and capable of causing illness and fatalities in humans – have been circulating in Asia since the early 2000s and in Egypt for almost 10 years. The H5N1 strain has caused the death of tens of millions of poultry and losses of tens of billions of dollars.

While the first incursion of the H5N1 in West Africa occurred in 2006 it was eliminated by 2008. In late 2014, however, the virus was re-introduced in Nigeria, where it spread rapidly in the following three months - to date more than 1.6 million birds have been culled or have died from the virus.

Because the disease can be transmitted to humans and is considered highly lethal, FAO is working closely with the World Health Organization on country assessments, contingency plans, offering technical assistance and investigating potential flu cases and the source of infection.

FAO’s appeal for $20 million for prevention and response foresees bolstering weak veterinary systems, improving the capabilities of local laboratories and putting FAO specialists on the ground in affected and at-risk countries.

In the countries that have experienced outbreaks, response interventions include destruction of infected and exposed poultry, disinfection of premises and markets and the safe disposal of dead birds.

Veterinary officers, meanwhile, are encouraged to use basic techniques like “trace-forward” – which looks at where infected animals have been sold or moved to – and “trace backward” – examining where infected animals were purchased or where they came from – to find sources with the ultimate goal of halting continuous virus introduction or further spread.

Although quality vaccines are available, the vaccination strategy to be implemented poses certain challenges in some countries and there is always a risk of creating a false sense of security by assuming that the administration of a dose of vaccine will resolve all threats. Instead, behavioural changes – including enhanced hygiene routines, good poultry production, and safe transportation practices of healthy animals – ought to be at the heart of prevention plans, according to FAO.

Poultry production has grown steadily in West Africa over the last 10 years, with some countries, like Cote d’Ivoire, seeing production soar by over 60 percent since 2006. However, regulatory systems have not grown to deal effectively with this increase in production and there is an acute need to make the market chains safer – from production to transporter to seller.

(FAO)