Juan Luis Criado Rius

IntroductionAvian metapneumovirus (aMPV) is a virus that causes respiratory and reproductive distress in chickens and turkeys. This condition leads to impaired performance and increased mortality, particularly when accompanied by secondary infections. While the virus has traditionally been downplayed in broilers, recent field investigations have highlighted the direct implication of aMPV in respir ...

1. IntroductionAvian Metapneumovirus (aMPV) is a globally recognized pathogen causing respiratory diseases, leading to substantial economic losses in the poultry industry. Also known as Metapneumovirus avis, it belongs to the family Pneumoviridae and the genus Metapneumovirus [1].So far, aMPV has been classified into four subtypes: A, B, C, and D [2]. These subtypes have been shown to exhibit vary ...