Immunology

Iron fuels immune cells—and it could make asthma worse

You've likely heard that you can get iron from eating spinach and steak. You might also know that it's an essential trace element that is a major component of hemoglobin, a protein in red blood cells that carries oxygen from ...

Diseases, Conditions, Syndromes

What to know about malaria

Malaria is caused by a single-celled parasite of the genus Plasmodium. The parasite is transmitted to humans most commonly through mosquito bites. The malaria parasites enter the bloodstream and travel to the liver. When ...

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