Lice thrive in cold weather, causing weight loss up to 0.21 pounds daily. Systemic drugs work best on sucking lice while topical options handle both types.

(WKOW) -- Wisconsin farmers are being asked to keep an eye out for lice on their cows. Dairy experts say studies show animal lice are growing resistant to the treatments used to get rid of them. They ...

As school starts back up, so does the number of head lice cases. But humans have been dealing with the parasites for millennia—and that may continue indefinitely. Head lice are some of our oldest ...