In Florida, cockroach allergens can stick around long after the bugs have left,...

https://goodmenproject.com/everyday-life-2/florida-homes-have-a-year-round-asthma-trigger-the-rest-of-the-country-only-gets-in-summer/

In Florida, cockroach allergens can stick around long after the bugs have left, posing a year-round challenge for asthma sufferers. These tiny particles can trigger symptoms even if you don't see roaches