The wild poliovirus is restricted to pockets of Afghanistan and Pakistan, and is beginning to reappear from here in big cities in these two countries The wild poliovirus is restricted to pockets of Afghanistan and Pakistan, and is beginning to reappear from here in big cities in these two countries Science Health News, Wellbeing Tips, Diseases, Treatment and Nutrition | The Hindu
The two vaccines that brought us to the brink of eradicating polio | Explained
