Mahima is suffering from cholera. It is likely that the children sitting around her will be exposed to the infection:
$(a)$ Do all the students get infected and suffer from disease?
$(b)$ List two major symptoms of cholera.
$(c)$ What are the different ways of spread of this disease?

(N/A) No, all students will not get infected and suffer from the disease because a large inoculum (number of pathogens) is required to transmit the disease.
$(b)$ Two major symptoms of cholera are:
$(i)$ Severe watery diarrhea (often described as rice-water stools).
$(ii)$ Dehydration, which can lead to low blood pressure and muscle cramps.
$(c)$ The different ways of spread of this disease are:
$(i)$ Consumption of contaminated water containing the bacterium $Vibrio$ $\text{cholerae}$.
$(ii)$ Consumption of food contaminated by soiled hands or flies carrying the pathogen.