Tag Influenza
With a tweak, flu virus is a killer
By incorporating the slightest change in the arrangement of its molecules, the virus responsible for a brief but frightening influenza outbreak in Hong Kong several years ago can quickly morph from a relatively benign virus to a killer.
New technique can create flu viruses
A research team has perfected a method for creating designer influenza viruses, which can be tailor-made to solve mysteries about how flu strains mutate, spread and cause illness.