A vaccination campaign against poliomyelitis resumed in Karachi on Tuesday, following a four-month halt due to the coronavirus pandemic.
Health workers were seen being escorted by armed security officers, as they knocked on doors to administer the vaccine to children.
According to reports, some 8,000 health workers are taking part of the national campaign that aims to vaccinate around 800,000 children under the age of five across the whole country.
Poliomyelitis, also known as polio, is an infectious disease considered nowadays only endemic to Pakistan and Afghanistan. It is known for attacking the nervous system and weakening the muscles, which can potentially lead to inability to move.