An Indian boy receives anti-polio vaccination drops by an Indian Health worker as part of a Polio vaccination campaign in Amritsar. Polio is a pandemic threat in four countries, namely India, Afghanistan, Pakistan and Nigeria, compared to 125 countries in 1988. There were 1,606 cases of polio in 2009, down from about 350,000 in 1988.
Getty Images photo by Narinder Nanu
Copyright © 2017, Los Angeles Times