More than 200 people have been offered an extra coronavirus vaccine after it emerged they were mistakenly given an insufficient dose.

A mix-up with needles and syringes meant 247 people were injected with 0.15ml of the vaccine rather than 0.25ml, the regional health service in West Brabant said.

All those affected were given the Moderna vaccine at Breda International Airport on March 4.

Spokeswoman Linda Vlamings told Omroep Brabant that most of them had already been given another vaccine dose or booked an appointment. ‘The maximum dose is 0.5ml, so there is a wide safety margin,’ she said.

‘This is very unfortunate for us and we have apologised to the people concerned.’