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Asymptomatic infection with clade 2.3.4.4b highly pathogenic avian influenza A(H5N1) in carnivore pets, Italy, April 2023.

ABSTRACT: In April 2023, an outbreak of clade 2.3.4.4b highly pathogenic avian influenza A(H5N1) viruses carrying the T271A mammalian adaptive mutation in the PB2 protein was detected in a backyard poultry farm in Italy. Five domestic dogs and one cat living on the premises had seroconverted in the absence of clinical signs. Virological and serological monitoring of individuals exposed to the virus proved the absence of human transmission, however, asymptomatic influenza A(H5N1) infections in mammalian pets may have important public health implications.

SUBMITTER: Moreno A 

PROVIDER: S-EPMC10472752 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Asymptomatic infection with clade 2.3.4.4b highly pathogenic avian influenza A(H5N1) in carnivore pets, Italy, April 2023.

Moreno Ana A   Bonfante Francesco F   Bortolami Alessio A   Cassaniti Irene I   Caruana Anna A   Cottini Vincenzo V   Cereda Danilo D   Farioli Marco M   Fusaro Alice A   Lavazza Antonio A   Lecchini Pierdavide P   Lelli Davide D   Maroni Ponti Andrea A   Nassuato Claudia C   Pastori Ambra A   Rovida Francesca F   Ruocco Luigi L   Sordilli Marco M   Baldanti Fausto F   Terregino Calogero C  

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin 20230801 35

In April 2023, an outbreak of clade 2.3.4.4b highly pathogenic avian influenza A(H5N1) viruses carrying the T271A mammalian adaptive mutation in the PB2 protein was detected in a backyard poultry farm in Italy. Five domestic dogs and one cat living on the premises had seroconverted in the absence of clinical signs. Virological and serological monitoring of individuals exposed to the virus proved the absence of human transmission, however, asymptomatic influenza A(H5N1) infections in mammalian pe  ...[more]

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