Avian metapneumovirus spreads in North America

Following the first detection of avian metapneumovirus (aMPV) subtype B in 2 Ontario turkey flocks in early May, the disease continues to spread in that province, a current hotspot of outbreaks within North America. The Feather Board Command Centre (FBCC) of Ontario, an initiative that oversees poultry disease issues for the boards of the provincial poultry associations, issued an advisory for the aMPV upon its detection in the province as it is highly contagious. Avian metapneumovirus is also known as Turkey Viral Rhinotracheitis in turkeys and Swollen Head Syndrome in chickens. It is a respiratory disease with symptoms similar to bronchitis and avian influenza. Mortality rates can be high. Transmission can occur through direct contact with infected poultry, via wild bird vectors, or through contaminated materials or equipment. As of 27 June, the FBCC reported new aMPV cases in 12 counties in Ontario. There are also cases in the neighbouring province of Manitoba, the US and ...