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Worst parasites in the world

By By Teresa Bergen Slide 1 of 24: This close-up photograph shows the Anopheles minimus mosquito, a malaria vector of the Orient, feeding on a human host. An. Minimus is one of the mosquito species responsible for spreading the drug resistant P. falciparum parasite in Thailand and Vietnam. As a result, drug resistant malaria has become one of the most important problems in malaria control in recent years.

While Ebola currently grabs the headlines, parasites impact millions of people around the world, year in and year out. In fact, the number one parasitic disease kills about a million people annually. 

Plasmodium parasites

Four different types of plasmodium parasite carried by mosquitoes cause malaria in humans, which kills more than 1 million people annually. Since the case will be worse if the parasite is more developed, places with the longest-lived mosquitoes pose the greatest danger.

© James Gathany/MediaforMedical/Getty Images
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