The tropical disease known as sleeping sickness is caused by the African Trypanosoma brucei parasite.
The tropical disease known as sleeping sickness is caused by the African Trypanosoma brucei parasite. For decades, scientists have been unable to pin down exactly how this parasite successfully evades detection in its hosts – until now. What was already known was that the bug wears a 'molecular cloak', made up of the variant surface glycoprotein (VSG) protein. This outer layer is constantly being renewed in order to evade detection by the immune system.
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