Head-louse infestation

As the skin is constantly exposed to the environment, it represents a common portal of entry for different parasites. Infestations with parasites can cause systemic diseases in humans, but often result in cutaneous lesions which are on the rise in dermatology clinical practice due to the increase of travel and immigration. Despite the considerable burden parasitic skin infestations can cause, their significance has often been neglected by the health-care providers and scientific community…

irritation. Head lice can affect anybody, children and old men alike; though lice are more prevalent for girls, boys can be infested too. Do you know where these bugs came from? Here are some important facts about head lice cycles. Pediculus humanus capitis is the scientific name of head lice. They are insects without wings living entirely in human scalp as their breeding and survival ground. There are more children infested with lice than adults. In fact, more than 6 million lice infestation is…

demonstrate that crab louse evolved from the similar gorilla louse, Pthirus gorillae (BioMed Central, 2009). Through genetic research on the mitochondrial genome of the chimpanzee louse, researchers found that a single mini-chromosome had fragmented into three sections in the lineage of ectoparasites, which includes head lice, body lice, and pubic lice about 3.3 million years ago (Herd, Barker, Shao, 2015). Diaz predicts that the body louse may have evolved from the head louse after man started…