S Korea to cut vaccine booster interval for elderly to fight rise in cases

South Korea plans to cut to four months from six the gap for coronavirus booster doses given to senior citizens as it looks to dampen a spike in serious cases, authorities said on Wednesday.

After managing to keep infections relatively low with aggressive testing and tracing, authorities are now grappling with a surge in critical cases since an easing of distancing rules this month under a "living with Covid-19" scheme...