Answer :
Residents of Bangladesh are thought to be developing resistance to infection by vibrio cholera by natural selection of humans who have mutations in genes that result in cells being less susceptible to the cholera toxin.
Cholera is an acute diarrheal illness resulting from contamination of the gut with Vibrio cholerae bacteria. people can get sick once they swallow meals or water contaminated with cholera micro organism. The infection is frequently mild or without signs, however, can sometimes be intense and existence-threatening.
The first cholera pandemic emerged out of the Ganges Delta with an outbreak in Jessore, India, in 1817, stemming from contaminated rice. The disorder quickly unfolds in most of India, current-day Myanmar, and cutting-edge-day Sri Lanka through journeying alongside trade routes installed by using Europeans.
Learn more about cholera here:
https://brainly.com/question/894131
#SPJ4