Russian cargo ship in Busan appeared in coronavirus cluster

South Korea’s latest infection cluster is linked to a Russia-flagged cargo ship where at least 16 out of the 21 sailors tested positive for the novel coronavirus that causes COVID-19, raising questions over screening loopholes at the country’s seaports. Busan officials said in a briefing Tuesday that they conducted coronavirus tests on the sailors at 1:30 p.m. Monday upon receiving notice that the ship&r…