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What are effects of rats, cockroaches on...

What are effects of rats, cockroaches on human health?

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Rats are hosts to flea which carry bacteria for plague. Through rats, the plague can be spread in human population. Cockroaches are proven to be carriers of typhoid. Both of them contaminate and destroy our food. Therefore, rats and cockroaches have direct effect on human health.
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NAVNEET PUBLICATION-HEALTH AND DISEASES-QUESTION BANK
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