'Should all Koreans receive 4th Covid-19 vaccine shot?'

The quarantine authorities are considering expanding the fourth Covid-19 vaccine shots to all people based on domestic quarantine situations and research results at home and abroad, officials said Tuesday. 'If the immunity level falls quickly, a virus resurge can also come quickly. However, we could put off the resurge depending on the immunity level,' said Lim Sook-young, a senior official at the Central Disease Control Headquarters (CDCH). 'I think the strategy for vaccination is very important.' In preparation for strains that may become prevalent in the second half of the year, the government will respond and prepare by focusing on how to implement vaccination, inject therapeutic agents at the right time, and develop strategies to strengthen surveillance for new variants, Lim added. The authorities confirmed a positive antibody rate of 94.9 percent through a survey but expected the immune effect to decline in the fall, making additional vaccination inevitable.