The previous commenter is correct. The article mentions many recommendations that are based on misinformation and fear. Links to the American Academy of Pediatrics and National Association of School Nurses position papers can be found within the head louse FAQs at https://identify.us.com. This is the new site for information, guidance and help that I hosted for decades at Harvard. I've now enhanced the information and resources, and offer it at no cost at the new site.
-Richard Pollack, PhD (IdentifyUS LLC)