- An unexplained shortage of the injectable version of the vaccine slows attempts to kill polio in Afghanistan, Nigeria and Pakistan.
- Vaccination rates have fallen dramatically in the last few years, and the conflict is making things worse.
- "There is no mercy, we have decided to deal with the refusal cases with iron hands.”
- With four more health workers killed this week, trying to eradicate the virus is a dangerous job
- More than a dozen polio cases have already been recorded in the largely rebel-held province of Deir al-Zor.