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After scientists confirmed that mosquitoes can transmit yellow fever and other diseases, mosquito control emerged as an important public health measure. Discover how Americans have managed mosquitoes at home and abroad through this selection of items from the NLM collection.

A chart

“Chart B illustrating the Influence of Solar Radiation and Moisture in the Production of Yellow Fever in New Orleans” in The Cause and Prevention of Yellow Fever, 1855

Courtesy National Library of Medicine

Some scientists in the 19th century thought that climate had an impact on the development and spread of yellow fever epidemics. They collected data on the weather in cities with regular yellow fever epidemics, like New Orleans, to identify the cause of the disease.