Polio Returns To Pakistan, Afghanistan As Vaccinations Stall
Poliomyelitis was responsible for paralysing and killing up to half a million people every year before the development of the poliovirus vaccine in 1955. By 2000, through mass vaccination campaigns of oral polio vaccines, the world had almost eradicated poiliovirus barring a few regions. However, the global fight against polio has encountered a significant setback, … Read more