housefly carry the bacteria of cholera .but its not get infected by cholera. why?
Answers
Answer:
Housefly is a carrier of an bacteria vibrio cholera .
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each and every microorganisms or pathogen are species specific because it's machanism of work on body or toxic substance which is released by the pathogens are not work efficiently on each and every organism ...it is also a species specific so, housefly is not affected by the the bacteria but human body provides it's a favorable environment ( i.e. pH, enzymatic activity, ...etc.) so, it multiplies and afterthat it produces progeny and also toxins so, human body is affected.
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House flies are unpleasant to have around. These pests create an eyesore in homes and often fly in people’s faces or hover over food. While these behaviors are frustrating on their own, these insects also carry a variety of bacteria and other disease causing organisms.
Links Between House Flies and Disease
With their diet of feces, trash, rotting produce, and spoiled meats, house flies constantly pick up pathogens. The insects then carry these germs and leave them behind wherever they land. The transfer process only takes a matter of seconds.
In addition to spreading the bacteria that cling to their bodies, these flies often vomit and defecate where they land and feed. These pests often gather in kitchens and buzz around food, so this behavioral tendency adds to the potential spread of house fly diseases.
What Diseases Do House Flies Carry?
Researchers suspect that house flies can harbor at least 65 illnesses that infect people. Some of the most common house fly diseases transmitted in the U.S. include food poisoning, dysentery, and diarrhea. These pests may also transmit the eggs of parasitic worms, which cause their own issues.
Other Diseases
Other diseases carried by house flies include:
Anthrax
Cholera
Salmonella
Tuberculosis
Typhoid
I hope it's helpful for you...