(CIDRAP News) – The US Department of Health and Human Services (HHS) has accepted the first batch of H5N1 avian influenza vaccine based on the H5N1 variant known as clade 2.2, which has spread most widely across Asia, Europe, and Africa.
(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.