Recommendations for Influenza Vaccine Composition

Northern hemisphere: 2000-2001

It is recommended that vaccines to be used in the 2000-2001 season (northern hemisphere winter) contain the following:

  • an A/Moscow/10/99 (H3N2)-like virus*
  • an A/New Caledonia/20/99 (H1N1)-like virus
  • a B/Beijing/184/93-like virus**

* A/Panama/2007/99 is an A/Moscow/10/99 (H3N2)-like virus.
**The most widely used vaccine strain is B/Yamanashi/166/98.

(from Weekly Epidemiological Record, Vol.75, 8, 2000 )