Health officials in Pakistan are stepping up their measles vaccination programme, amid fears of another outbreak. More than 320 children have died of measles since January last year, but security concerns, nervous parents, and a lack of resources are putting millions of children at risk . Al Jazeera's Osama bin Javaid reports from Karachi. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website http://www.aljazeera.com/
