Health workers to vaccinate 9m children against polio after outbreak in Malawi

A sample of polio vaccine (Andrew Stuart/PA)

A drive to vaccinate more than nine million children against polio has been launched this week in four countries in southern and eastern Africa after an outbreak was confirmed in Malawi.

The urgent vaccination drive has started in Malawi where drops of the inoculation are being placed in the mouths of children across the country, including in the capital, Lilongwe, and the country’s largest city, Blantyre.