The rotavirus vaccines have been given the all-clear. The US Food and Drug Administration today said that both Merck’s RotaTeq and GlaxoSmithKline’s Rotarix vaccines were safe to use despite trace amounts of a pig virus contaminant.

For more on the initial discovery of the porcine circovirus in the vaccine, see our story from this month’s issue of Nature Medicine.

Image by Magic Madzik via Flickr Creative Commons