Ethics Statement
The Institutional Review Board of the University of Florida exempted the study from review (Exemption of Protocol #2009-U-0422) and waived the need for written informed consent of the participants. This exemption is issued based on the United States Department of Health and Human Services (HHS) regulation 45 CFR part 46, because louse removal was voluntary and no identifiable information was recorded and so the need for written informed consent from the participants was waived.