Imported case of avian influenza A(H9N2) virus infection in a patient with miliary tuberculosis, Italy, March 2026

Eurosurveillance 2026 Open access

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Authors: Elena Pariani, Simona Puzelli, Gabriele Del Castillo, Greta Romano, L Mezzadri, Cristina Galli, Irene Maria Sciabica, Luigi Vezzosi, Francesca Sabbatini, Cristina Paduraru, Irene Mileto, Marcello Tirani
+5 more Anna Teresa Palamara, Paola Stefanelli, Fausto Baldanti, Danilo Cereda, Paolo Bonfanti
DOI: 10.2807/1560-7917.es.2026.31.15.2600285
Cited by: 3
References: 12

Abstract

On 21 March 2026, avian influenza A(H9N2) virus was confirmed in Italy in a patient with miliary tuberculosis. The patient had recently travelled to West Africa. Following the detection of an unsubtypable influenza A virus, rapid molecular confirmation and full genome sequencing were performed. Phylogenetic analysis revealed that the virus belonged to subclade G5.5 and was closely related to African strains. Epidemiological investigations identified no additional cases, suggesting there was no evidence of onward transmission at the time of reporting.

Fields of Study & Subjects

Influenza Virus Research Studies Respiratory viral infections research Poxvirus research and outbreaks

Publication details

Journal / source
Eurosurveillance
Publisher
European Centre for Disease Control and Prevention (ECDC)
Volume
31
Issue
15
Publication date
16 April 2026
Language
EN