Rats and their fleas take the rap for spreading the plague, but lice that infest people may share the blame. Human body lice can harbor plague-causing bacteria and can transmit the disease by biting, ...

Body lice are tiny insects that live in clothing, bedding, and other fabrics. They feed on human blood and then return to the ...

Sea lice bites are an itchy rash caused by jellyfish larvae that get trapped in swimsuits after swimming in the ocean. The larvae release toxins that trigger irritation, redness, and welts on the skin ...

Coastal cities from Boston to Galveston raged two years ago when the U. S. Public Health Service reported them centres of typhus fever, social disease caused by lice bites. Victims develop spots on ...