
There is no evidence that the deadly H7N9 bird flu has yet spread between humans in China but health authorities seem ready for the virus to mutate at any time, a top US virologist has warned. Anthony Fauci, the head of the National Institute of Allergy and Infectious Diseases (NIAID), said officials in China had studied more than 1,000 close contacts of confirmed cases and not found any evidence of human-to-human transmission. What’s bothersome is that there have been cases where no contact to poultry has been found. These cases leave an open door when it comes to the source of infection. "That is powerful evidence because if you … [Read more...]








