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World Malaria Day 2018: Facts, Symptoms of Disease Carried By Mosquitoes

By Elana Glowatz

Malaria is a preventable disease—but millions of people around the world still contract it every year, with hundreds of thousands of those people dying as a result. Most of those deaths are of African children.

Here’s what you need to know about the illness on April 25, World Malaria Day.

History of malaria

The word “malaria” means “bad air” in Italian, and has been in use since the early 18th century. The disease itself, however, is believed to go back at least several thousand years. Ancient Chinese medical documents describe symptoms of malaria, including one dating to 2700 BCE, according to the U.S. Centers for Disease Control and Prevention. In ancient Greece, in the 4th century BCE, malaria was responsible for affecting the populations of different city-states. The famous physician Hippocrates, one of the most notable figures in ancient medicine, was one of the people to record its symptoms.

According to the World Health Organization, there were about 216 million cases of malaria in 2016—roughly 445,000 of which were fatal. Africa is hit the hardest: About 90 percent of the cases occurred in the African region of the WHO’s coverage. A lot of those happened in sub-Saharan Africa specifically.



The signs of malaria include, most notably, chills and a fever. People who are infected may also experience sweating, diarrhea, vomiting, a headache and other body aches. Symptoms usually crop up in the first few weeks after a patient has been bitten by a carrier mosquito. In serious cases, malaria can cause complications like organ failure; hypoglycemia; anemia; brain swelling; and fluid build-up in the lungs.

“In countries where cases of malaria are infrequent, these symptoms may be attributed to influenza, a cold, or other common infections, especially if malaria is not suspected,” the CDC says.

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