The authors of a recent paper exploring the respiratory route of poliovirus transmission argue that the earlier the oral polio vaccine is replaced with the injectable polio vaccine, the faster the world will reach global polio eradication The authors of a recent paper exploring the respiratory route of poliovirus transmission argue that the earlier the oral polio vaccine is replaced with the injectable polio vaccine, the faster the world will reach global polio eradication Health Health News, Wellbeing Tips, Diseases, Treatment and Nutrition | The Hindu