The U.S. Centers for Disease Control and Prevention has raised travel warnings for Singapore and Hong Kong by one level

The Centers for Disease Control and Prevention (CDC) on Monday raised its travel advice to Singapore and Hong Kong by one level each

Singapore’s rise from level 2 to level 3 indicates that the country’s new crown is at a "high" level

The infection rate of Singapore's new crown has soared to a new high in the past week

Data source: Johns Hopkins University (as of September 27)

This week, the CDC raised the travel warning for Hong Kong from level 1 to level 2, indicating the change in the level of the new crown from "low" to "medium"

The CDC says travelers to a level 2 or 3 destination should ensure that they are fully vaccinated before traveling

In the past week, the number of new crown cases reported in Hong Kong every day has been in single digits, and all infected persons are imported cases

According to "Our World in Data" data, as of September 26, the United States had an average of 359 new cases per million people every day in the past seven days, compared with 244 per million people in Singapore and 0.

CDC is divided into four levels in the new crown travel health advice

Level 1: Low

Level 2: Moderate

Level 3: High

Level 4: Very high

All travelers are advised to avoid going to level 4 destinations

The US State Department also has four levels in its travel advisory system, but includes broader factors in its classification

Level 1: Take normal precautions

Level 2: Take more cautious measures

Level 3: Rethink travel

Level 4: Do not travel

The department’s recommendations should now include COVID-19 risk information for each destination

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