It’s clear that rat fleas played a major role ... They're different from head lice, which are far more common in the U.S. and typically affect school-age kids. Both insects feed on human ...

Researchers thought the bacterium would infect fleas on rats, and when the rats died, the fleas would jump to humans, infecting them. Rats are also thought to be responsible for spreading more recent ...

Head lice affect more than 100 million people worldwide annually. Permethrin (1% formulation) is efficacious but resistance is emerging. Malathion (0.5% formulation) is an alternative, but ...

It kills fleas, ticks, and lice on contact and provides protection ... Apply the shampoo to a rich lather, starting from the head and moving toward the tail. This helps prevent fleas from jumping ...

Citronella, eugenol (clove), lemongrass, peppermint, and tea tree oils combine to defend pets from fleas, ticks, lice, and mosquitoes ... and tick collar offers head-to-tail flea and tick ...