Why Polio Has Reemerged in Gaza
Why are most cases of polio vaccine-derived variants? Most cases of paralytic polio are now vaccine-derived due to the success of the Global Polio Eradication Initiative. OPV has been instrumental in the near-eradication of wild polioviruses around the world. However, in areas where vaccination rates drop and enough people are susceptible to infection, the weakened … Read more