File photo of a school official taking a pupil’s temperature using an infrared digital laser thermometer in front of the school premises, at the resumption of private schools, in Lagos

A school official takes a pupil’s temperature using an infrared digital laser thermometer in front of the school premises, at the resumption of private schools, in Lagos in this September 22, 2014 file photo. REUTERS/Akintunde Akinleye/Files