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European Centre for Disease Prevention and Control, Eurosurveillance, 3(24), 2019

DOI: 10.2807/1560-7917.es.2019.24.3.1800649

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Expanding Usutu virus circulation in Italy: detection in the Lazio region, central Italy, 2017 to 2018

Journal article published in 2019 by Fabrizio Carletti ORCID, Francesca Colavita ORCID, Francesca Rovida, Elena Percivalle ORCID, Fausto Baldanti, Ida Ricci, Claudio De Liberato, Francesca Rosone, Francesco Messina, Eleonora Lalle, Licia Bordi, Francesco Vairo, Maria Rosaria Capobianchi, Giuseppe Ippolito, Giuseppina Cappiello and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Blood donation screening for West Nile virus (WNV) was mandatory in the Lazio region in 2017 and 2018 (June-November) according to the national surveillance plan. In these years, all five donations reactive in WNV nucleic acid amplification tests harboured instead Usutu virus (USUV). Clade ‘Europe 2’ was identified in four blood donations and a 2018 mosquito pool. The cocirculation of WNV and USUV in Lazio warrants increased laboratory support and awareness of possible virus misidentification.