“Test results on all 301 crewmembers of the unit showed that 247 tested positive and 50 negative. The samples of four individuals were undecipherable,” the South Korean military was quoted as saying in a statement.
None of the personnel had been vaccinated as they left South Korea before the country started its inoculation campaign.
Some of the crew members were receiving treatment in local hospitals, while others with mild or no symptoms had been placed in isolation on the vessel, according to an earlier report.
The destroyer was on an anti-piracy mission in the Gulf of Aden off Somalia and around the Strait of Hormuz, the report said. South Korea has sent two multirole aerial tankers to the waters off Africa to bring back all the crew.