Avian metapneumovirus spreads in North America

Published 2024년 7월 3일

Tridge summary

Avian metapneumovirus (aMPV), also known as Turkey Viral Rhinotracheitis in turkeys and Swollen Head Syndrome in chickens, is spreading in Ontario, Canada, and other North American regions. The highly contagious disease causes respiratory symptoms and can lead to high mortality rates. Currently, there are no specific control programs or vaccines for aMPV in Canada and the USA, though emergency access to killed vaccines is possible in Canada. A recent study by US Department of Agriculture scientists reveals a new strain of aMPV in the US, related to recent Mexican strains but with unique mutations. The study also found that a revised aMPV subtype-specific RT-qPCR test had similar performance to commercial kits in detection and subtyping capabilities.

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Original content

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 ...

Source: UkrAgroConsult