Cocirculation of varying influenza types, strains, and lineages allows coinfection and intra-season sequential infection, although a same-strain sequential infection has not been previously described. This case report describes the first known case of sequential laboratory-confirmed influenza A (H3N2) infections in a child within one season.
Keywords: H3N2 subtype; case reports; coinfection; influenza; viral surveillance.
© 2019 The Authors. Influenza and Other Respiratory Viruses Published by John Wiley & Sons Ltd.