In Florida, cockroach allergens can linger long after the roaches disappear,...

https://fair-wiki.win/index.php/What_Actually_Causes_Roaches_in_a_Clean_Florida_Home%3F

In Florida, cockroach allergens can linger long after the roaches disappear, making asthma symptoms worse for many families year-round. Even a few hidden spots can cause problems because these allergens stick around in dust and crevices