Dengue fever is transmitted to humans by
- A. contaminated drinking water
- B. the bite of Aedes mosquitoes
- C. coughing and sneezing
- D. eating contaminated food
Explanation
Aedes aegypti and Aedes albopictus mosquitoes carry the dengue virus between people, which is why outbreaks follow the mosquito season and stagnant water. Water and food routes spread gut infections such as cholera, not dengue.
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