Avian flu is probably coming back, says the World Organization for Animal Health (OIE). In an interview with Reuters, an OIE official said the level of exposure in wild birds is indicative of high avian flu activity. In the last few weeks eight European countries, in addition to India and Israel, have reported outbreaks of H5N8, a strain that can infect waterfowl, other migratory birds, and poultry. Though the risk to human health is considered low, mutation or reassortment with other strains of influenza could make H5N8 dangerous and potentially lethal. Avian flu poses a significant threat to poultry flocks.  READ MORE