For the most part, we are only bothered by 10 - 12 types that infest in and around our homes.
Cockroaches travel through very nasty places such as sewers, dumpsters, bathrooms and damp unsanitary places. Although these areas are subject to bacteria, most health issues related to cockroaches are digestive in nature - such as gastroenteritis, food poisoning, nausea, abdominal cramps; diarrhea, and dysentery.
Sanitation has to be the first line of defense. Keeping harborage areas to a minimum such as getting rid of leaf and trash piles.
Rocky's Termite & Pest Control. A Family Tradition since 1962.