News & Perspective

Aug 18, 2006

Aug 18, 2006

WHO changes H5N1 strains for pandemic vaccines, raising concern over virus evolution

(CIDRAP News) – The World Health Organization (WHO) today changed the H5N1 avian influenza strains recommended for candidate vaccines for the first time since 2004, causing some experts to question how far the virus has evolved.

The WHO's new prototype strains, prepared by reverse genetics, include three new H5N1 subclades.

Jan 03, 2006

Jan 03, 2006

Avian flu ruled out in Turkish patients

(CIDRAP News) – Avian influenza has been ruled out in a 14-year-old Turkish boy who died over the weekend and in three siblings who were hospitalized with him, according to news services.

Tests on the four children were negative for avian flu, according to Turkish health officials quoted in an Agence France-Presse (AFP) report published yesterday.