This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
The following are true of vibro cholerae except 
Select and explain. 
A. Produces indole and reduces nitrates, B. Synthesises neuraminidase, C. Dies rapidly at low temperature, D. All
C: Dies rapidly at low temperature
Answer: C: Dies rapidly at low temperature 
Explanation: Ans. is 'c' i.e., Dies rapidly at low temperature . Duration of protection of cholera vaccine is 3-6 months. . Vibrio cholerae does not die at lower temperature, infact it grows at lower temperature (range 16-40degC)