Advances in Polio Vaccines: New Strategies to Combat Vaccine-Derived Polio Outbreaks
New Polio Vaccines Developed to Combat Vaccine-Derived Polio Outbreaks In 1980, the eradication of smallpox raised hopes that the polio virus would be next. While progress has been made in eradicating polio, cases of vaccine-derived polio are on the rise. Last year, 665 cases of polio of vaccine origin were registered in 23 countries. Vaccine-derived … Read more