(CIDRAP News) For the first time, evidence suggests that the H5N1 avian influenza virus may have passed from one person to another and on to a third, according to a World Health Organization (WHO) official.
Referring to the extended-family case cluster in Indonesia, the WHO's Maria Cheng told the Canadian Press (CP) yesterday, "This is the first time we have seen cases that have gone beyond one generation of human-to-human spread."