News & Perspective

Apr 29, 2009

Apr 29, 2009

WHO raises pandemic alert to phase 5

(CIDRAP News) – To confront the spreading swine influenza H1N1 virus, the head of the World Health Organization (WHO) today raised the agency's pandemic alert level to phase 5, one notch below a full-fledged influenza pandemic, signaling that it's time for all countries to prepare.

The move comes just 2 days after the WHO raised the alert from phase 3, where it had been for several years, to phase 4.