Identification of Dobrava-Belgrade Virus in <i>Apodemus flavicollis</i> from North-Eastern Italy during Enhanced Mortality

oleh: Stefania Leopardi, Petra Drzewnioková, Melissa Baggieri, Antonella Marchi, Paola Bucci, Marco Bregoli, Paola De Benedictis, Federica Gobbo, Laura Bellinati, Carlo Citterio, Isabella Monne, Ambra Pastori, Gianpiero Zamperin, Elisa Palumbo, Francesca Festa, Martina Castellan, Maira Zorzan, Emilio D’Ugo, Paolo Zucca, Calogero Terregino, Fabio Magurano

Format: Article
Diterbitkan: MDPI AG 2022-06-01

Deskripsi

Hantaviruses include several zoonotic pathogens that cause different syndromes in humans, with mortality rates ranging from 12 to 40%. Most commonly, humans get infected through the inhalation of aerosols or dust particles contaminated with virus-containing rodent excreta. Hantaviruses are specifically associated with the host species, and human cases depend on the presence and the dynamics of reservoir hosts. In this letter, we report the identification of Dobrava-Belgrade virus (DOBV) in the yellow-necked mouse (<i>Apodemus flavicollis</i>) from Italy. The virus was detected in the mountainous area of the province of Udine, bordering Austria and Slovenia, during an event of enhanced mortality in wild mice and voles. Despite serological evidence in rodents and humans that suggested the circulation of hantaviruses in Italy since 2000, this is the first virological confirmation of the infection. Phylogenetic analyses across the whole genome of the two detected viruses confirmed the host-specificity of DOBV sub-species and showed the highest identity with viruses identified in Slovenia and Croatia from both <i>A. flavicollis</i> and humans, with no signs of reassortment. These findings highlight the need for ecologists, veterinarians and medical doctors to come together in a coordinated approach in full compliance with the One Health concept.