Tracking the twists and turns of the flu virus
This article was originally published in Scrip
Executive Summary
As the novel influenza A (H1N1) virus continues its remorseless spread and the first cases of infection are confirmed in mainland China and Southeast Asia, more questions are being asked about whether the virus might mutate again if it comes into contact with other flu viruses such as the highly virulent H5N1, and what will happen if it does.