Crab louse

Crab louse infestation in pre-Columbian America.

Until now, Pthirus pubis infestation in ancient human populations had only been recorded in the Old World. We found crab lice on South American mummified bodies from the Atacama Desert region. Crab louse eggs were found attached to the pubic hairs of a 2,000-yr-old Chilean mummy. Well-preserved adults were found in sediment and clothing from a Peruvian mummy dated 1,000 yr ago. Paleoparasitolog...

Maintenance of the crab louse, Pthirus pubis, in the laboratory and behavioural studies using volunteers.

Treatment of Phthiriasis Palpebrarum and Crab Louse: Petrolatum Jelly and 1% Permethrin Shampoo

Phthiriasis palpebrarum is an uncommon cause of blepharoconjunctivitis in which Pthirus pubis infest the eyelashes. We report a case of unilateral phthiriasis palpebrarum with crab louse. A 45-year-old man presented with conjunctival hyperaemia and moderate itching associated with irritation, and crusty excretions of the eyelashes in the left eye. Careful slit-lamp examination revealed many lic...

Treatment Resistance in Louse Control

While there problems facing the physician in treating individual patient for lice/ such choice of pediculicide, from the public health view greatest is lice control in entire populations. This paper deals mainly with problems encountered in delousing campaigns. These may be associated with the organization and implementation of delousing under difficult conditions the problems of louse resistan...

Blue Crab Summary_Blue Crab Status02001-8.5x11

The blue crab, Callinectes sapidus, is a keystone species which plays an integral ecological, economic, and sociological role in Chesapeake Bay. The blue crab functions as both predator and prey in the Bay’s complex estuarine foodweb and occupies a variety of critical habitats impacted by human activity. Blue crabs exhibit a complex life history, disperse between estuarine and marine habitats, ...