News & Perspective

(CIDRAP News) – The core of a US biosecurity advisory board's concern about two controversial, as-yet-unpublished studies on H5N1 viruses is that the studies have shown how to remove the apparent natural barrier that keeps the viruses from spreading efficiently in mammals, members of the board said in statements published today.

(CIDRAP News) – Canadian researchers have reported a study in which both young children and middle-aged adults had little evidence of immune protection against swine-origin influenza H3N2 viruses like those that have been reported recently in a dozen US children.