The FDA tested retail samples of milk and other dairy products in 17 states for viable bird flu virus, collecting 297 samples from 132 processing locations across 38 states between April 18-22. Despite confirming bird flu in dairy cattle in nine states since late March, the FDA reported on May 10 that no live virus was found in retail milk samples and assured that pasteurized milk is safe to drink, while cautioning against raw milk consumption. However, scientists believe the outbreak is more widespread, as about 20% of retail milk samples contained remnants of the H5N1 virus. The tested samples included various dairy products such as cottage cheese, cream, sour cream, yoghurt, and half and half.