SANTA CLARA COUNTY, Calif. — A new variant of the coronavirus, first detected in India, has been diagnosed in the San Francisco Bay Area and is believed to be the first of its kind discovered in the United States.

The variant, believed to be responsible for a recent surge in India’s COVID-19 cases, is classified as a double mutation, KNTV reported.

To date, Stanford University experts have confirmed only one case involving the new variant countywide, but more are expected, the TV station reported.

“We identified this new Indian variant last week just immediately after it was reported in the lay press,” Dr. Ben Pinsky, director of the Stanford Clinical Virology Lab, confirmed to KTVU.