Over 80 Million Reached As Africa Trailblazes Novel Polio Vaccine
Photo: AfricaNews.com More than 80 million children have been vaccinated with the novel oral polio vaccine type 2 (nOPV2) in…
Photo: AfricaNews.com More than 80 million children have been vaccinated with the novel oral polio vaccine type 2 (nOPV2) in…