At least 18 countries are now either limiting the use of the AstraZeneca vaccine for certain age groups, or recommending alternatives, due to safety concerns.
South Korea will decide what it will do on Sunday.
But the KDCA remains firm that no major delay will happen in the inoculation drive.
Our Lee Kyung-eun has the latest.
The South Korean government has reaffirmed the importance of vaccination, stressing its key role in maintaining the health care system, especially in times of a resurgence of COVID-19,like now.
The KDCA on Friday said that the vaccine rollout has drastically contributed to lowering the number of cluster infections at high-risk facilities like nursing hospitals.
And its impact has been seen in the decline in the overall number of fatalities and hospitalizations.
"Severe cases of COVID-19 once topped 350 in early January,but now have dropped to around 110. And of some 760 total intensive care units secured for such cases, the country is only operating 140 at the moment. We have more than 8,000 hospital beds for patients."
Witnessing the benefits of vaccinations, the country said it will push ahead with its initial inoculation drive, despite partially suspending on Wednesday the rollout of the AstraZeneca vaccine due to concerns over blood clots.
"It was a precautionary measure to halt the rollout, but we will draw a scientific and reliable conclusion based on experts' opinions. We will continue our plan to achieve herd immunity by November without making any delays in the second quarter."
As of Friday, at least 18 countries are limiting the use of the AstraZeneca jab.
Australia on Thursday decided to recommend those under 50 to get the Pfizer jab.
Britain previously said people under 30 should get an alternative vaccine.
The Philippines, on Thursday, joined Belgium, Sweden, Italy and others in recommending a minimum age.
Norway and Denmark have temporarily suspended the jab entirely.
South Korea will make its decision on the AstraZeneca vaccine on Sunday.
Lee Kyung-eun, Arirang News.