The theme for World Polio Day 2020 is 'Stories of Progress: Past and Present' and in some places is 'A win against polio is a win for global health'.
It was established by Rotary International to commemorate the birth of Jonas Salk.
He led the first team to develop a vaccine against poliomyelitis.
In the year 1988, The Global Polio Eradication Initiative (GPEI) was launched by collaborations between the Rotary International and the World Health organisation.
Polio largely affects children under the age of five.
The poliovirus has three strains (type 1, type 2 and type 3).
Both type 2 and type 3 strains have officially been declared as globally eradicated.
Only 3 countries in the world have reported the transmission of polio.
They are Pakistan, Afghanistan and Nigeria.
India received polio free certification from the WHO in 2014.