The South Korean government refuted criticism over a delay in securing COVID-19 vaccines, saying there is no reason to become the first country to immunize its citizens.

At a press briefing on Wednesday, Health Ministry spokesperson Son Young-rae said the vaccine's safety must not be overlooked for the public's sake, before expressing concern over growing public sentiment that the country should be the first to secure the vaccines.

Earlier this month, the South Korean government promised to secure enough COVID-19 vaccines to inoculate 44 million people. But the only pre-purchase agreement signed so far has been for 10 million doses with AstraZeneca. 

He said due to the global rush to develop the vaccines, it would be best to avoid getting the shots first, saying it is a relief to have one or two months to monitor their effects in other countries.

Expecting six to ten months to achieve herd immunity, the spokesperson said priority should be given to certain groups in immunization and supply should be gradually expanded to fully contain the virus.

As for the exact timing, Son said the vaccinations for those carrying the highest risks will begin as soon as the vaccines' safety is confirmed.