News & Perspective

May 26, 2009

May 26, 2009

WHO may redefine pandemic alert phases

(CIDRAP News) – In response to concerns from various governments about the possible effects of declaring a full-scale influenza pandemic, the World Health Organization (WHO) will call on outside experts to consider whether to revise the agency's definitions of pandemic alert phases, a WHO official announced today.

Apr 27, 2009

Apr 27, 2009

WHO raises pandemic alert to phase 4 [updated 7:15 p.m. CST]

Editor's note: Includes two new sections, on phase change considerations and on possible impact.

(CIDRAP News) – The World Health Organization (WHO) today raised its official pandemic alert level from the current phase 3 to phase 4 on its 6-phase scale, saying the newly identified swine influenza virus has made a pandemic more likely but not inevitable.