An Australian hospital has apologised after six out of 66 people were given an “ultra-low” dose of Pfizer at the Kippa Ring Vaccination Centre in Brisbane, the Queensland government has announced. Citing an administration error, Queensland Health said it had attempted to contact the 66 people who attended the vaccination centre before 9.30 a.m. on Saturday, Aug. 7. Only six had been given the incorrect dosage. However, Queensland Health said it had “no ability to trace which of the first 66 people” received them. “The Pfizer vaccine requires a process of preparation, where saline is added to the vaccine vial and withdrawn to make up to 6 syringes,” Queensland Health said in a media release on Aug. 10. “An initial review indicated one vial was used twice, meaning the doses drawn on the second use were over-diluted.” The incorrect doses were administered within 90 minutes of the centre opening that …