Pandemic Influenza Virus Detected in China The new strain is similar to swine flu, which spread throughout the world in 2009.
This strain has appeared recently and is carried by pigs, but, according to local experts, it can infect humans. Researchers are worried that it may mutate further, begin and easily spread from person to person and cause a global outbreak. The strain has all the signs of high fitness for infection of people and needs careful monitoring, especially since we may not have any immunity to it.
The results are published in the Proceedings of the National Academy of Sciences.