Key to their success so far has been the decision to respond aggressively from the outset.
In Taiwan, an island of 23 million, arrivals from Wuhan were
subject to health screenings before human-to-human transmission of the virus was confirmed on Jan. 20.
By Feb. 1, Taiwan, Hong Kong and Singapore had all proactively implemented travel restrictions on passengers coming from the mainland, contravening the World Health Organization’s [WHO] insistence that
travel bans were not necessary. The precautions came at a significant economic cost to these international hubs, which all rely on mainland China as their biggest trading partner and source of tourists.