With reference to Polio, consider the following statements; 1. The virus is transmitted by person-to-person, spread only through the faecal-oral route.2. For a country to be declared polio-free, the wild transmission of all three kinds has to be stopped.3. India was declared polio-free in January 2014, after three years of zero cases. Which of the statements given above is/are correct? |ForumIAS

[A] 1 and 2 only

[B] .2 and 3 only

[C] .1 and 3 only

[D] 1, 2 and 3

Answer: B

Notes:

Statement 1 is incorrect: The virus is transmitted by person-to-person, spread mainly through the faecal-oral route. However, the virus also spreads through a common medium such as contaminated water or food.
Statement 2 is correct: There are three variants of the poliovirus, numbered 1 to 3. For a country to be declared polio-free, the wild transmission of all three kinds has to be stopped.
Statement 3 is correct: India was declared polio-free in January 2014, after three years of zero cases. The last case due to wild poliovirus in the country was detected on January 13, 2011. The WHO on February 24, 2012, removed India from the list of countries with active endemic wild poliovirus transmission.