what are effects of rats and cockroaches on human health
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Explanation:
Rats and Cockroaches are carriers of deadly bacteria and viruses since they do live in gutters.
They crawl through sewages and become the carrier of many disease causing germs which have adverse effect on human health.
Salmonella Typhi which is found in cockroaches causes typhoid.
Poliomyletis which mainly causes polio are found in insects.
They are also a main causes for causing dysentry.
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