NBC News Reports: U.S. health officials continue to monitor for coronavirus cases in the United States.Read the full article at: https://nbcnews.to/3bSNrjv?fbclid=IwAR2wwe9EDPybDZaAZBXrxVkPRdeT_NTbmKRx0iw3U7-eCI9KZ93KRZPqNrM