Question

Which vaccine is used in the pulse polio program
A. Salk vaccine
B. Sabin vaccine
C. Killed vaccine
D. Injectable vaccine.

Answer 1

Hint:-Poliovirus is responsible for causing polio or poliomyelitis. Poliovirus is icosahedral symmetrical which involves RNA as the genetic material. Poliovirus is composed of nearly 7500 nucleotides. Polio can be prevented by taking the vaccination.

Complete step-by-step solution:-
The Pulse polio program involved the Salk vaccine. In 1955 Dr. Jonas Salk first invented the polio vaccine. This is the inactivated polio vaccine (IPV).
- The first three strains of poliovirus were collected from the tissues.
- After collection, strains were kept in formaldehyde to kill.
- Killed viruses were then injected into the human body as the vaccine.
In 1960 Dr. Sabin first invented the Sabin vaccine which replaced the Salk vaccine. Sabin virus is the oral poliovirus vaccine (OPV). Sabin vaccine comprises live weakened viruses which are taken orally.
Thus,the right answer is option A. Salk vaccine

Additional note:- In 1995 pulse polio immunization program was started in India. January 18, is known as pulse polio day. Pulse polio doses are given to every child at 4-6 weeks interval up to 5 years. India has announced as a polio-free country byWorld Health Organization (WHO) in 2014 on 27th March

Note:- Poliovirus can transfer from one individual to another by contact. It affects the central nervous system of a human which leads the person to the paralytic. The symptoms of the polio are fever, muscle loss, weakness, the quivering of muscle, headache, nausea, etc.