(CNN) A Starbucks employee in downtown Seattle tested positive for the coronavirus, leading to the store's closure for a deep cleaning, the company said.

In a memo Friday, Starbucks said the worker who tested positive is isolated at home. The store where the patient worked is closed, and the local health department has given it the go-ahead to return to business following the cleaning, Starbucks said. It did not announce when it'll reopen.

Starbucks said it'll continue to follow coronavirus protocols rooted in care for employees and expertise from the Centers for Disease Control and Prevention.

"The frequent, additional cleaning and sanitizing procedures already underway in all our stores are fully in line with their guidance," said Rossann Williams, executive vice president.

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