Sleeping sickness. View of a painful nodule on a teenage girl's leg showing the initial site of African sleeping sickness (trypanosomiasis) infection. The disease is caused by Trypanosoma sp.,a parasitic protozoan. The protozoa are passed onto humans by blood-sucking tsetse flies,Glossina sp.,when they feed. The leg sore marks this feeding site. The protozoa infect the blood,lymph nodes,heart and brain causing a fever. Nervous system damage leads to lethargy and tremors. Without treatment,fatal damage to the heart or brain results. Photographed in Uganda | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Crump, A. / WHO / TDR |
Taille de l’image : | 3671 px × 2516 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |