There are almost no mosquitoes in Disney World even though it is in a swampy territory abundant with bugs. They have a sophisticated mosquito surveillance program to try and eliminate them quickly.
Tiny Fox Lab

There are almost no mosquitoes in Disney World even though it is in a swampy area. They have a sophisticated Mosquito Surveillance Program which involves freezing and analyzing bugs as well as “sentinel” chickens whose blood they monitor for disease. – Tiny Fox Lab Facts

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Source: mentalfloss.com/article…