Question

Vibrio cholerae causes cholera in humans. Ganga water was once used successfully to combat the infection. The possible reason could be

• A. High salt content of Ganga water
• B. Low salt content of Ganga water
• C. Presence of bacteriophages in Ganga water
• D. Presence of antibiotics in Ganga water

Answer 1

Answer: (C)

Presence of bacteriophages in Ganga water

Cholera is a water and food borne disease caused by enteric pathogen Vibrio cholerae. Ganga water was once used to combat cholera because of the presence of bacteriophages in it. Bacteriophages are viruses that infect bacteria and replicate within them (in this case Vibrio cholerae)

So, the correct answer is 'Presence of bacteriophages in Ganga water'