What is responsible for the most recent increase in public demand for mosquito control in the United States?

• A. Outbreak of malaria
• B. West Nile virus disease outbreak
• C. Dengue fever outbreak
• D. Zika virus outbreak

Answer: (B)

Public demand for mosquito control rises when a mosquito-borne disease is actively circulating locally and people perceive real risk to their health. West Nile virus outbreaks in the United States, beginning in 1999 and spreading across many states, brought widespread illness and strong media attention. This combination of confirmed human cases, public concern, and visible health risk led communities and governments to invest more in mosquito surveillance, larviciding, adulticiding, and public education. Malaria isn’t endemic in the U.S., so malaria outbreaks don’t generate the same nationwide push. Dengue and Zika outbreaks have driven concern in affected areas, but West Nile virus outbreaks produced the broader, longer-lasting increase in demand for mosquito control across the country.