On May 11, 2020, this report was posted online as an MMWR Early Release.Jennifer F. Myers, MPH1; Robert E. Snyder, PhD1; Charsey Cole Porse, PhD1; Selam Tecle, MPH1; Phil Lowenthal, MPH1; Mary E.
Danforth, PhD1; Edward Powers, DVM1; Amanda Kamali, MD1; Seema Jain, MD1; Curtis L. Fritz, DVM, PhD1; Shua J. Chai, MD1,2; Traveler Monitoring Team (View author affiliations)To reduce introductions of COVID-19 into the United States, travelers from selected countries were screened upon entry, and their contact information forwarded to states for monitoring.During February 3–March 17, 2020, California received, corrected, and transmitted information on 11,574 travelers to local health jurisdictions for follow-up.