Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what metrics his Department uses to assess the effectiveness of routine avian influenza surveillance systems in detecting early outbreaks of H5N1.

Our avian influenza surveillance programmes are line with international standards of best practice and requirements for disease surveillance set out by the World Organisation for Animal Health’s Terrestrial Animal Health Code. In addition to our statutory obligations set out in The Avian Influenza and Influenza of Avian Origin in Mammals (England) (No.2) Order 2006 (as amended).

Our avian influenza surveillance is comprised of mandatory reporting of suspicion of avian influenza in kept birds and mammals, targeted avian influenza and testing of found dead wild birds and wild mammals. In addition, targeted serological surveillance for avian influenza viruses in domestic poultry is carried out annually in Great Britain by the Animal and Plant Health Agency (APHA) as required by The Avian Influenza and Influenza of Avian Origin in Mammals (England) (No.2) Order 2006 and in line with the sampling guidance in assimilated legislation 2010/367.

The serological surveillance is a risk-based, targeted programme which aims to detect low pathogenic avian influenza (LPAI) in gallinaceous birds (chickens, turkeys, game birds) which could mutate into high pathogenic avian influenza (HPAI), and HPAI and LPAI in domestic waterfowl which generally don’t show clinical signs of avian influenza. Sampling is required to be undertaken where the prevalence of infected poultry holdings is at least 5% with a 95% confidence interval.