(Express File Photo: Abhishek Saha)In the last one year or so, polio has made a comeback in countries such as the Philippines, Malaysia, Ghana, Myanmar, China, Cameroon, Indonesia and Iran, mostly as vaccine-derived polio infection. Before traveling to these countries, adults who completed their routine polio vaccine series as children should receive a single, lifetime adult booster dose of polio vaccine”. For eradication, cases of both wild and vaccine-derived polio infection to be reduced to zero. Some years ago, India introduced the injectable polio vaccine in the Universal Immunisation Programme. This was to reduce chances of vaccine-derived polio infection, which continues to happen in the country.

Source: Indian Express January 24, 2020 22:52 UTC