(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.
(CIDRAP News) Seven people in Karo district of North Sumatra, Indonesia, are being treated for suspected H5N1 avian influenza, raising concern that the disease may have resurfaced near where human-to-human transmission was documented in an extended family in May.
(CIDRAP News) A Thai province is culling 300,000 chickens after a laboratory test confirmed an avian influenza outbreak, and the country's health ministry is monitoring 80 patients who are suspected of having avian flu.
(CIDRAP News) The World Health Organization (WHO) confirmed today that a 17-year-old boy who died on Jul 24 in the Phichit province of northern Thailand had H5N1 avian influenza, marking the country's first case this year.
The WHO statement said the case was confirmed by Thailand's Ministry of Health. The country had not recorded a human H5N1 case since December; its toll now stands at 23 cases with 15 deaths.
(CIDRAP News) Thailand is facing its first outbreak of H5N1 avian influenza in birds in 8 months, along with flu-like illnesses in a number of people in areas with sick birds, according to news services.
June 23, 2006 (CIDRAP News) Avian flu vaccination programs in poultry that are widely but imperfectly instituted, like those in China and Indonesia, may impede detection of human cases, according to a report from the European Centre for Disease Surveillance and Control in Stockholm.
(CIDRAP News) The World Health Organization (WHO) today confirmed that a 15-year-old Indonesian boy who died May 30 had H5N1 avian influenza, but the agency said four nurses who had suspicious symptoms after caring for avian flu patients were not infected.
(CIDRAP News) All seven confirmed cases of H5N1 avian influenza in the family cluster in Indonesia involved "close and prolonged exposure" to another infected person, suggesting person-to-person transmission, the World Health Organization (WHO) said today.