Head Lice Now Resistant to Common Meds in 25 States
Drug-resistant head lice are very likely coming to a school near you, U.S. investigators warn.
At least 25 states host lice populations that don’t respond to common over-the-counter treatments, a new analysis reveals.
Permethrin, part of the pyrethroid class of insecticides, has long been the go-to weapon against head lice, mosquitoes, bedbugs and other insects.
But continued exposure to permethrin has caused a huge swath of the dreaded insects to develop genetic mutations that render such drugs useless.
Read the article “Head Lice Now Resistant to Common Meds in 25 States” on health.usnews.com.
