There are other treatments for permethrin-resistant "mutant" head lice March 13, 2014Dr. Barry Dworkin Madely Health Headlines Commentary for March 13, 2014 [display_podcast] Source: Super lice on verge of conquering Canadian scalps as mutant parasites develop immunity to insecticides Reference: Knockdown Resistance Allele Frequencies in North American Head Louse (Anoplura: Pediculidae) Populations Patient information: Head lice (Beyond the Basics) Related posts: Not all fevers in children are harmful Vaccine hesitancy and anti-vaccination beliefs listed by WHO as a global threat to public health Measles cases continue to increase in US hitting 25-year high Ottawa school has greatest philosophical vaccine exemption rate. The California policy change to eliminate it reversed this outcome in their schools. head licepermethrins