Malaria Parasite Caught in the Act of Breaking and Entering

In medieval Italy, it was accepted wisdom that anyone walking near a swamp risked falling ill from “bad air” — mala aria. Victims were struck with fever, headache, nausea, and chills, and occasionally the illness escalated to vomiting, jaundice, and death. Today, we still call this affliction malaria. For much of human history, it has ravaged populations in humid tropical and subtropical regions… Source