Another coronavirus case of unknown origin identified in California

Researchers Work On Developing Test For Coronavirus At Hackensack Meridian’s Center For Discovery and Innovation 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 has been identified in Santa Clara county, California on Friday. This indicates to health experts that the novel coronavirus — which causes the disease COVID-19 — is likely spreading through more than one community in the US.

The Washington Post first reported news of the second case of community transmission in the US — a 65-year-old woman who had no known history of travel to any of the countries that have been hardest-hit by the disease.

So far, more than 84,000 cases of COVID-19 have been confirmed around the world, and more than 2,800 people have died of the respiratory disease. Most of these cases are concentrated in China, where the virus was first identified, but the disease has...

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