France has started administering coronavirus booster shots to people over 65 and those with underlying health conditions.
The move is meant to shore up their vaccine protection against the highly contagious Delta variant. People can get the shot on the condition a minimum six-month period has passed since they got fully vaccinated with the Pfizer or Moderna vaccine.
The Health Ministry says about 18 million people are eligible for the booster shot.
France has been facing increased cases since July, with a slight decrease in recent weeks — from 23,000 per day around mid-August to the current 17,000. Health officials are concerned about a reversal of the trend as children return to school on Thursday.
Almost 44 million people, or 65% of the French population, are fully vaccinated.