The Avian Metapneumovirus Information Website

Avian Metapneumovirus (aMPV) principally causes disease in turkeys and chickens. Pheasants and guinea fowl are also susceptible, and antibodies to the virus have also been demonstrated in wild birds and other domestic species.

The virus has two important targets of replication, the respiratory tract and the reproductive tract. It initially causes respiratory disease in infected birds and may also cause drops in egg production in layers and breeders. Although morbidity is high, the mortality rate in an infected flock can vary, depending on standards of management and on possible involvement of secondary bacterial infections. Infection in turkeys is commonly referred to as “Turkey Rhinotracheitis” and in chickens aMPV infection is commonly associated with the condition known as “Swollen Head Syndrome” (SHS). However SHS cannot be reproduced experimentally using aMPV infection and flocks serologically positive for aMPV may show no signs of disease. It is probable that other agents are involved, along with aMPV in the syndrome.

Control of aMPV is best achieved by improved biosecurity and vaccination with products such as Nobilis Rhino CV, Nobilis RTV 8544, Nobilis TRT and/or Nobilis RT inac and combinations.

Avian-pneumovirus.com is the first peer reviewed website with a specific focus on Avian Metapneumovirus infections. The aim of the site is to provide a platform for peer reviewed disease information, current news items and vaccination information.

Disease Information

Disease Control

Chicken vaccines

Turkey vaccines