In kitties, mast cell tumors are most often seen in the skin of the head or neck, but they can occur anywhere in the body. Cats with these tumors are usually middle age or older (4-plus years of age), but any cat can develop a mast cell tumor, including kittens.
Body lice can live anywhere there is hair on the body. Body lice are much hardier than other types of lice and can live up to 10 days without a human host. On a human host they can survive for up to three weeks, laying up to 88 eggs during their lifetime on their host.ithout a human hosts, most lice will only live for a maximum of 48 hours. This is why sealing clothes and toys after infection in a plastic bag is a great way to get rid of lice. Lice on a human host can survive two or three weeks. However, living lice lay eggs.
Head lice and their eggs (nits) soon perish if separated from their human host. Adult head lice can live only a day or so off the human head without blood for feeding. Nymphs (young head lice) can live only for several hours without feeding on a human.lthough reliable data on how many people in the United States get head lice each year are not available, an estimated 6 million to 12 million infestations occur each year in the United States among children 3 to 11 years of age.