Some cities remain in lockdown, streets are deserted, employees are nervous, and travel bans and quarantine orders are in place around the country. Many factories have yet to re-open, disrupting supply chains in China and beyond.

In Japan, where data showed on Monday that the economy had already shrunk last quarter at the fastest pace in almost six years, the impact of the virus is expected to show up in the current quarter, stoking fears of recession.

Trade-dependent Singapore downgraded its 2020 economic growth forecast and has said recession is possible. It is set to unveil measures to cushion the blow on Tuesday.

Organisers of the Tokyo Marathon have decided to limit the March 1 race to top-level athletes, banning 38,000 general participants, a person with knowledge of the issue told Reuters.

Japan's Imperial Household Agency said it would cancel Emperor Naruhito's public birthday address on Feb. 23, his first since his coronation last year. The event regularly attracts tens of thousands of people to the inner grounds of the Imperial Palace in the heart of Tokyo.