Singapore and Japan scrutinize COVID cases after 2 vaccine shots

City-state warns against letting guard down despite its swift jab rollout

20210412 singapore shot

A man receives a coronavirus vaccination in Singapore on March 8. © Reuters

DYLAN LOH, Nikkei staff writer

SINGAPORE -- Singapore is urging vigilance over COVID-19 after reporting one case of a migrant worker who tested positive well over a month after he was fully vaccinated.

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