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parasite

Kwak Sin-ae, Bong Joon-ho, cast and crew of Parasite at the 92nd Oscars in February, 2020. Eric McCandless/Eric McCandless via Getty Images hide caption

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Eric McCandless/Eric McCandless via Getty Images

An ant is host of the parasitic Ophiocordyceps fungus. Katja Schulz/Flickr hide caption

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Katja Schulz/Flickr

The zombies living in our midst

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This photomicrograph depicts Leishmania donovani parasites contained within a canine bone marrow cell. One of the more dangerous of 20 different species of Leishmania, L. donovani is endemic to parts of India, Africa, and South-West Asia. Dr. Francis W. Chandler/CDC hide caption

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Dr. Francis W. Chandler/CDC
Sean McMinn/NPR

World's First Malaria Vaccine Launches In Sub-Saharan Africa

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A female adult head louse holds onto human hairs, as it is filmed under a microscope. The brown line visible inside the louse, on the left side of its body, is the blood meal it took when it lived on a human host's scalp. Josh Cassidy/KQED hide caption

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Josh Cassidy/KQED

These mitochondria, in red, are from the heart muscle cell of a rat. Mitochondria have been described as "the powerhouses of the cell" because they generate most of a cell's supply of chemical energy. But at least one type of complex cell doesn't need 'em, it turns out. Science Source hide caption

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Science Source

A health official takes a blood sample from a child's finger for a malaria test at a clinic in Bong Ti Lang village on the Thai-Myanmar border. Narong Sangnak/EPA /LANDOV hide caption

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Narong Sangnak/EPA /LANDOV