http://www.usatoday.com/story/travel/news/2020/02/20/coronavirus-hong-kong-japan-cdc-travel-advisories/4817996002/
Coronavirus: CDC issues new travel notices for Hong Kong, Japan
The Centers for Disease Control and Prevention issued new advisories on Wednesday for travelers going to Hong Kong and Japan in the wake of the deadly coronavirus spreading across the world.
The advisories are notably only a "level 1," a "watch," meaning travelers should exercise "usual precautions," unlike the "level 3" issued for China Jan. 27, which warns to "avoid nonessential travel." China's "level 3" advisory excludes Hong Kong, Macao and Taiwan. In the new Japan and Hong Kong advisories, the CDC specifically mentions it "does not recommend canceling or postponing travel."