A brief history of the development of the polio vaccine.
Violence against vaccine campaign workers has very serious consequences. This violence has been on the increase recently, fueled by social media and the mass spread of antivaccine lies and misinformation.
The World Health Organization has announced that the second of three types of polio viruses has been eradicated through vaccination. One more to go, and polio will be a thing of the past.
A quick round-up of videos from around the world on vaccine-related issues.
After a generation without polio, the disease has returned to the Philippines. Distrust in vaccines has fueled an enormous measles epidemic, and now this.