What is the "three-line rule" for nits?

May 26, 2022 ... Head lice do not favor particular socioeconomic classes, but body lice are often observed on homeless and are associated with poverty, ... Recognizing that head lice can be a sensitive topic, the group strived to examine the current body of research about head lice and make recommendations in the ... Oct 25, 2024 ... Head lice infestations are the most prominent ectoparasitic infection in the world, including Iran, particularly among school children. These findings indicate that head and body lice have almost the same genomic content; therefore, their phenotypic difference is likely to be associated with a ... Mar 2, 2017 ... The presence of nits does not mean that in infestation is active. It is difficult to tell the difference between a live nit and one from which ... Sep 17, 1997 ... Unlike body lice, head lice are found among children at all socioeconomic levels. ... differences between children with long and short hair. Dec 12, 2011 ... Moreover, we assessed whether a phylogenetic difference existed between head and body lice collected from the same patient. The Study. After ... Controversial data suggest that not only body lice but also head lice can serve as vectors of Bartonella quintana, and a better understanding of louse ... Unlike head lice, body lice sometimes ... Because it is not usually possible to distinguish between living and dead nits, doctors recommend removing them. Mar 11, 2010 ... There were no significant differences in the frequencies of adverse events between the two treatment groups. Conclusions. For difficult-to-treat ...