Seoul ¨C In May, when a coronavirus outbreak hit nightclubs in the South Korean capital of Seoul, health officials quickly unleashed their version of the Navy Seals ¡ª elite teams of epidemiologists, database specialists and laboratory technicians.
An old-school, shoe-leather investigation showed the virus had jumped from a night-club visitor to a student, to a taxi driver and then alarmingly to a warehouse employee who worked with 4,000 others.
Thousands of the employee¡¯s co-workers, their family members and contacts were approached and 9,000 people were eventually tested. Two weeks later, the warehouse flare-up was mostly extinguished and infections curtailed at 152.
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