Recommendations for Influenza Vaccine Composition
Northern hemisphere November 1998-April 1999
It is recommended that vaccines to be used in the 1998-1999 season contain the following:
- an A/Sydney/5/97(H3N2)-like virus;
- an A/Beijing/262/95(H1N1)-like virus;
- a B/Beijing/184/93-like virus. *
* The most widely used vaccine virus is B/Harbin/7/94.