Scientists have discovered a parasite that can sneak into your skin without you feeling a thing. The worm, Schistosoma mansoni, has evolved a way to switch off the body’s pain and itch signals, ...

With the arrival of hot weather in Shasta County, swimmers visiting Whiskeytown's Brandy Creek and other Redding area lakes and ponds may come away with microscopic parasites that cause an itchy rash ...