A Christchurch resident has been injected with a used needle when getting a Covid booster.
On Friday, a needle previously used to vaccinate one person was used again.
CDHB Senior Responsible Officer for the COVID-19 response, Dr Helen Skinner, said once staff at the Christchurch Hospital clinic realised the mistake, they immediately advised the second person.
She said the DHB is in contact with all three people involved and blood samples have been taken from those who received the injection.