68.7 MB (1.2 MB compressed)
6000 x 4000 pixels
50.8 x 33.8 cm ⏐ 20.0 x 13.3 in (300dpi)
KATERYNA KON / SCIENCE PHOTO LIBRARY KATERYNA KON / SCIENCE PHOTO LIBRARY
Sleeping sickness. Computer illustration of a trypanosome (Trypanosoma brucei). 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).
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