Sleeping sickness. Artwork of a trypanosome (Trypanosoma brucei) moving past human red blood cells in the blood. This protozoan is the cause of sleeping sickness (African trypanosomiasis). It is a vector-borne parasite transmitted by blood- sucking tsetse flies (Glossina sp.). This life stage,the trypomastigote,lives in the bloodstream of the human host,reproducing asexually. It causes a recurring fever,enlarged lymph nodes,joint pain,weight loss and insomnia. Without drug treatment,the disease is usually fatal. The identical-looking trypomastigotes of T. cruzi are found in the blood of people with Chagas' disease (American trypanosomiasis) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Bavosi, John |
Bildgröße: | 2480 px × 3692 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |