News & Perspective

(CIDRAP News) – The World Health Organization (WHO) is recommending that influenza vaccines for the Southern Hemisphere's 2013 flu season should contain the same three strains as the vaccines now being administered to millions in the Northern Hemisphere.

(CIDRAP News) – The World Health Organization (WHO) today recommended changing two of the three strains in next season's influenza vaccine for the Northern Hemisphere, ending a couple of years of stability in the vaccine's makeup.

The WHO's flu experts called for changing the A/H3N2 and B components of the vaccine but continuing to use a strain of the pandemic 2009 virus for the A/H1N1 component.