Cockroaches spread nearly 33 different kinds of bacteria, six kinds of parasitic worms and at least seven other kinds of human pathogens. As cockroaches crawl through decaying matter or sewage, they turn into disease-carrying pests by picking up germs on the spines of their legs and bodies. The National Pest Management Association (NPMA) also warns that cockroach allergens can trigger asthma attacks, with an increased incidence in children.
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