News & Perspective

(CIDRAP News) – Canadian researchers reportedly have found as-yet-unpublished evidence that people who had a seasonal flu shot last year incurred a higher risk of H1N1 infection, but US and World Health Organization (WHO) officials say they are not aware of any similar findings elsewhere.

(CIDRAP News) – The first wave of H1N1 vaccine will probably consist of 3.4 million doses of MedImmune's nasal-spray product and is likely to reach providers the first week in October, federal health officials said today.

Editor's note: The item on the Salmonella outbreak was revised Feb 19 to correct information on case numbers for specific states.

(CIDRAP News) – Because of a suboptimal match between this year's flu vaccine and circulating influenza B viruses, the World Health Organization (WHO) has recommended changing one of the three strains used in flu vaccines for the Northern Hemisphere next fall and winter.