Genetic subtyping of influenza A viruses using RT-PCR with a single set of primers based on conserved sequences within the HA2 coding region.

Influenza A viruses are subtyped conventionally according to the antigenic characteristics of the external glycoproteins, haemagglutinin (HA) and neuraminidase (NA). To date 15 HA and 9 NA subtypes have been described. There is a need to develop fast, accurate and reliable methods to identify influenza virus subtypes, which may be associated with disease… CONTINUE READING