Parasites and vectors ::
1.Flies :;
They carry germs on their feet because of their dirty habits and habitat They also sit on sweets foods and fruits vessels furniture and other fomites and transmit germs on them for further spread Microbes of typhoid dysentery poliomyelitis diarrhoea cholera food poisoning etc are communicated by flies
2.Mosquitos ::
Various types of mosquitoes transmit germs of certain diseases through their bite Malaria is transmitted by the bite of female anopheles filaria by culex mosquito Dengue by Aedes degyptic mosquito yellow fever (found in Africa ) is carried by tsetse fly
3.Parasites ::
Number of minute insects through their bites transmit germs of infection in the human blood Flea bring germs of plague from the rat on which it lives and transmits it to the humans through the bite Lice and bugs also transmit typhus fever germs to the human through the bite The germs of African tick fever are transferred to the human through the bite of the mite
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