Mosquitoes responsible for over 700,000 deaths annually, CDC calls them world’s deadliest animal
The CDC labels mosquitoes as the planet’s deadliest animal, citing more than 700,000 human fatalities each year from the diseases they spread.
According to the CDC, mosquitoes top the list of animals that kill humans, responsible for upwards of 700,000 deaths each year through disease transmission. The most lethal of these illnesses is malaria, which kills over 600,000 people annually, with young children in sub-Saharan Africa most affected. While malaria was eliminated in the United States in the early 1950s, ten locally acquired cases were reported in 2023 across Florida, Texas, Maryland and Arkansas.
West Nile virus infections have risen sharply, with at least 48 cases.S. each year. Dengue infects an estimated 400 million people worldwide, causing roughly 21,000 deaths, while yellow fever and Japanese encephalitis together account for tens of thousands of fatalities, though vaccines exist for both. Although only a small fraction of the 3,700 mosquito species transmit disease, the public health burden remains immense.
Why it matters
Mosquito-borne diseases cause hundreds of thousands of deaths annually, highlighting a major global health challenge.
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