Cockroaches have survived for more than 300 million years. Ancient cockroach fossils have the same look as today's cockroaches. They are oval and flat and have long legs. The modern cockroach has the same need for a warm moist climate. Worldwide there are about 3,500 kinds of cockroaches. Most of these live in the tropics. There are a few called urban cockroaches. Urban cockroaches prefer even temperature and moist conditions that humans have in their homes. The German Cockroach is the most common cockroach infesting structures. It is very successful at doing this causing damage to food, household items, and health. And is hard to control. The German cockroach may carry disease-producing organisms like bacteria, protozoans and viruses
people like food poisoning, dysentery, diarrhea, and other illnesses. The cockroaches carry the vectors causing the diseases on their legs and bodies. Cockroach excrement and cast skins also contain a number of allergens. Many people have allergic responses such as rashes, watery eyes, sneezing, nasal congestion and asthma. They also produce odorous secretions that effect the flavor of foods and can contaminate food with disease-causing organisms.
on their bodies. They also transmit different forms of gastroenteritis