(CIDRAP News) A new subtype of H5N1 avian influenza virus has become predominant in southern China over the past year, possibly through its resistance to vaccines used in poultry, and has been found in human H5N1 cases in China, according to researchers from Hong Kong and the United States.
(CIDRAP News) A group of influenza experts convened by the World Health Organization cautioned today that governments shouldn't stockpile "pre-pandemic" H5N1 influenza vaccines now, because too little is known about the requirements for an effective vaccine.
(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) China's vice premier said today that China may see more bird outbreaks and human cases of avian influenza this spring, as the government announced plans for an intensive hunt for cases among wild birds on a major migration route, according to news services.
Jan 6, 2006 (CIDRAP News) 2005 is likely to go down as the year when avian influenza, powered by a steady rise in human cases and the spread of poultry outbreaks all the way to Eastern Europe, emerged as a high-profile global health issue.
When 2005 dawned, only 45 human cases of H5N1 avian flu, including 32 deaths, had been counted by the World Health Organization (WHO). All of those were in Vietnam and Thailand.
(CIDRAP News) Turkey today confirmed two human cases of avian influenza, contradicting earlier statements and marking the disease's first attack on people outside East Asia, according to news reports this afternoon.
(CIDRAP News) – The outbreak of an unusual pig-related disease in China might be nearly spent, and evidence continued to point to Streptococcus suis as the cause, the World Health Organization (WHO) said yesterday.
(CIDRAP News) International health agencies are questioning China about a report that the country has used a human antiviral drug in poultry for years, thereby causing the H5N1 influenza virus to become resistant to the drug.
(CIDRAP News) The British magazine Nature trained a floodlight on the threat of an influenza pandemic today with a collection of 10 articles that explore the danger and possible remedies and demand a more serious global response.
"The level of current efforts is not commensurate with the threat we face," the editors write. "The time for diplomacy and denial is over. It is time for advocacy and action."
Apr 2 (CIDRAP News) The World Health Organization (WHO) today took the unusual step of advising against nonessential travel to Hong Kong and the neighboring Guangdong Province of China because of the outbreak of severe acute respiratory syndrome (SARS) there.