Coronavirus cases of unknown origin found in California, Washington and Oregon

A researcher works on developing testing for the novel coronavirus at a lab in New Jersey.| Photo by Kena Betancur/Getty Images A second case of COVID-19 with an unknown origin was identified in Santa Clara county, California on Friday, and two other potential cases of unknown origin were identified in Oregon and Washington state. This indicates to health experts that the novel coronavirus — which causes the disease COVID-19 — is likely spreading through more than one community in t