News & Perspective

If the H7N9 influenza virus now circulating in China evolves into a pandemic strain, the world is likely to have great difficulty providing adequate supplies of an effective vaccine in time to blunt its impact, according to a viewpoint article by three experts in the Journal of the American Medical Association (JAMA).

(CIDRAP News) – The influenza vaccine that was developed to fight the 2009 pandemic saved roughly 300 lives and prevented about 1 million illnesses and 6,000 hospitalizations, or under 3% of the estimated total burden in each category, according to new estimates from the Centers for Disease Control and Prevention (CDC).

(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.

(CIDRAP News) – A run of stability in the makeup of seasonal influenza vaccines continued as the World Health Organization (WHO) recently recommended using the same three flu strains in next year's Southern Hemisphere vaccine as are in the current Northern Hemisphere vaccine and were used last year in southern countries.