Which of the following combinations is correct?

	Disease	Causative micro-organism	Mode of transmission
(A)	Polio	Bacteria	Air and water
(B)	Cholera	Virus	Water and food
(C)	Hepatitis B	Bacteria	Food and water
(D)	Measles	Virus	Air

Correct option is A

The correct answer is Only (D).
Polio
Polio is caused by Pollo virus.
This virus infects the central nervous system of the individual.
It can be transmitted through direct contact with someone infected with the virus and through contaminated food and water.
Cholera
Cholera is caused by a bacterial pathogen called Vibrio cholerae.
It affects the alimentary system of the individual.
It can be transmitted through contaminated food and water.
Hepatitis B.
Hepatitis B is caused by hepatitis B virus (HBV).
This virus affects the liver of the infected individuals.
It is spread from the mother to child during birth, as well as through contact with blood or other body fluids during sex with an infected partner, unsafe injections or exposure to sharp instruments.
Measles
Measles is caused by an extremely contagious virus called morbillivirus.
In fact, if 10 people who weren't vaccinated were in a room with someone with measles, nine of those people would get measles.
Measles is spread by: Contaminated droplets that are spread through the air when you cough, sneeze or talk.