Scientists have long debated whether human body lice might have helped drive the rapid spread of the bacteria responsible for the deadly plague in the Middle Ages, known as the Black Death. It’s clear ...

Add Yahoo as a preferred source to see more of our stories on Google. Head lice are most commonly spread by close person-to-person contact, according to the CDC. (Getty Images) (freemixer via Getty ...

In the Pacific Northwest, sea lice that spread from cultivated salmon to their wild counterparts have become major parasites affecting the wild population. The lice, which are visible to the naked eye ...

Lice are tiny, parasitic insects that often live on human scalps. They're not harmful to humans and they don't spread disease, but they can be itchy and annoying. Children — especially preschool and ...

The story that teens were getting lice by taking too many selfies went viral on Monday. But is it true? Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive ...

A lice-removal professional claims selfies are contributing to an increase in the spread of head lice among young people, but for now at least, the link is by no means conclusive. Michael Franco ...

Although head-lice infestations most commonly affect school-aged children and their caretakers, I have only ever had lice as a 20-something. My freshman year of college, my boyfriend and I both ...

A couple weeks back to school and parents are having to do homework on something called super lice.Super lice are infestations of head lice that do not respond to regular lice-killing products.

Head lice have been a dreaded parasite for years, with some schools temporarily shutting down over lice outbreaks. But while many schools and day care facilities have a policy that someone with lice ...