Piglets resting in their sty at the Lower Drayton Farm in the UK. (Photo: Christopher Furlong, Getty Images)

Not Now, Ominous New Swine Flu Strains

Researchers in China are sounding the alarm over strains of the influenza virus that have become common among some farm pigs — strains that have the potential to erupt into an easily transmissible pandemic in people, they warn. But while the threat is serious and worth keeping an eye on,…