antena Iskrenost Dosledno how many cases of polio are there in 2017 Umazanija Tradicionalna zbrisati
Wiping Out Polio: How The U.S. Snuffed Out A Killer : Shots - Health News : NPR
Polio - Our World in Data
World Health Organization (WHO) on Twitter: "Wild #polio weekly update (as of 29 March): 1 new case in Afghanistan this week 5 Cases in 2017 3 in #Afghanistan 2 in #Pakistan #EndPolio https://t.co/YxhOzJsdHh" / Twitter
Evolving epidemiology of poliovirus serotype 2 following withdrawal of the serotype 2 oral poliovirus vaccine | Science
Bill Gates on Twitter: "In 1988, there were 40 new polio cases an hour. In 2016, there were just 40 cases. Here's how we get to zero: https://t.co/KLxRt7soA5 https://t.co/BenNBjCvup" / Twitter
The U.S. Government and Global Polio Efforts | KFF