Lice have been so intrinsically linked to humans, evolving alongside us for over 25 million years, that their genetic data is providing clues to our genetic history. They are helping ...

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 ...

Much like with humans, high densities mean it is easier for diseases to be transmitted.' Although they are small, the lice can cause catastrophic damage commercially. Infected fish can't be sold due ...

A 2016 study found that resistant lice have spread to 48 states. More recently, a 2023 review found that 59% of human head lice in study participants are now resistant to insecticides. While ...

But a team from the universities of Oslo and Ferrara now says the first, the Black Death, can be "largely ascribed to human fleas and body lice". The study, in the Proceedings of the National ...

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 ...

Background In the treatment of human head lice infestation, healthcare providers are increasingly concerned about lice becoming resistant to existing pesticide treatments. Traditional pesticides ...

Head lice can be a wintertime headache for families and schools, but simple precautions can stop the spread of these pesky parasites. Every year, 6 million to 12 million children in the United ...

Fipronil is commonly used to get rid of fleas, lice and ticks but is banned by the European Union for use on animals destined for human consumption, such as chickens. The insecticide got into the ...