The only vaccine now available to residents is China's Sinovac vaccine
Hong Kong suspended use of the vaccine created by Pfizer and BioNTech Wednesday after its Chinese distributor informed the city that one batch had defective bottle lids.
The city's government said the suspension was immediate while the matter is investigated by vaccine distributor Fosun Pharma and BioNTech, the German company that created the vaccine with American pharmaceutical firm Pfizer.
BioNTech and Fosun Pharma have not found any reason to believe the product is unsafe, according to the statement. However, vaccinations will be halted as a preventive and safety measure.
The defective lids were found on vaccines from batch number 210102. A separate batch of vaccines, 210104, will also not be administered.
Macau also said Wednesday that residents would not receive vaccinations from the affected batch.