China was overwhelmed by the corona virus pandemic that began in Wuhan just a few weeks ago. Since then, Wuhan has been successful in drastically reducing the number of new cases, which is known as flattening the curve.
Singapore, Hong Kong, and Taiwan despite their close proximity to China, through vigilant monitoring and early intervention have managed to keep the number of cases down with some success,
But recent spikes in those places suggest that they are still at risk. For example, 21 of the 23 new cases in Taiwan and at least 13 of the new cases in Hong Kong on Wednesday were people who had recently traveled overseas.
More countries are now implementing travel bans or mandatory quarantine for returning travelers, as the pandemic continues to ravage the world, sickening more than 210,000 people as of Wednesday evening.
In the United States and five other countries, the number of known coronavirus cases is still growing rapidly. They have all reported more than 4,000 new cases in the past week.