Scientists have developed a new vaccination strategy for malaria — boosting immunity through bites from mosquitoes carrying a genetically engineered version of the parasite that causes malaria.

In first-stage testing, 20 subjects were exposed to either 15 or 50 bites from mosquitoes carrying the modified GA2 parasite. None of the subjects showed evidence of a blood-stage infection ...

The T. brucei parasite, after entering the bloodstream via a tsetse fly bite, also infects tissues outside the bloodstream. The function of this "extravascular" home for the parasite had ...

It's very rare for these parasites to bite humans The mites ... so the couple had no way of knowing what the marks were from. It's quite unusual for these mites to bite humans, with only 40 ...