Results for search "H1N1 (Swine) Flu".
It's well known that some viruses make the leap from animals to humans, but a new study shows the influenza strain responsible for the 2009 H1N1 pandemic has been particularly prolific in hopping between species.
That strain, called pdm09, has passed from humans to swine about 370 times since the pandemic, researchers report. Further, subsequent circulation in swine prompted the evolution...