REUTERS/Denis Balibouse/File PhotoThe World Health Organisation (WHO) logo is seen near its headquarters in Geneva, Switzerland, February 2, 2023. REUTERS/Denis Balibouse/File PhotoThe World Health Organization said on Wednesday a death was caused by the first laboratory-confirmed human case of infection with a subtype of avian influenza. This was the first laboratory-confirmed human case of infection with A(H5N2) subtype of bird flu reported globally and the first H5 virus infection in a person reported in Mexico. The World Health Organization said on Wednesday a death was caused by the first laboratory-confirmed human case of infection with a subtype of avian influenza. This was the first laboratory-confirmed human case of infection with A(H5N2) subtype of bird flu reported globally and the first H5 virus infection in a person reported in Mexico.