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Due to modern heating, cockroaches can be found in most parts of the country. Cockroaches are survivors. Over millions of years, they have not needed to evolve very much. All roaches have wings, but few fly. Cockroach infestations have a strong, awful scent. Roaches can survive on almost anything (any human food, other insects, glue, fat, wood, even dirt). The two most common types of roaches found in or around homes are American and German.
Long despised by homeowners, the cockroach is more than just a creepy nuisance pest that can survive freezing temperatures and a week without its head. This creature can pose serious health risks to humans if it finds a way indoors. In fact, all types of cockroaches pick up germs on the spines of their legs as they crawl through decaying matter, which may be transferred to humans through food contamination. Cockroaches are known to spread at least 33 kinds of bacteria, including E. coli and Salmonella, as well as six kinds of parasitic worms and at least seven other kinds of human pathogens.
In addition, cockroaches can trigger asthma and allergy attacks as their droppings, saliva and shed skin contain potent allergens and can exacerbate asthma symptoms, especially in children.