Pubic louse. Coloured Scanning Electron Micrograph (SEM) of a pubic louse,Phthirus pubis,also known as the crab louse,clinging to a human hair. An infestation of P. pubis causes pediculosis,the symptoms of which are severe itching and a rash. The lice suck blood,feeding five times a day. They spread through sexual contact and through bedding and clothing. Each of the louse's six legs terminates in a massive claw,which folds inward to meet a thumb-like projection on the opposite side. The louse climbs and swings through its hairy habitat,locking into position when disturb- ed,for instance by scratching or washing. Magnification: x40 at 6x7cm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wadforth, Cath |
Bildgröße: | 3195 px × 2598 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |