Amazon Fulfillment Center - Shepherdsville (2)

The Amazon warehouse in Shepherdsville, Ky. known as SDF-9. (March 24, 2020)

LOUISVILLE, Ky. (WDRB) -- A fourth positive case of the novel coronavirus has been identified at one of Amazon's warehouses in Shepherdsville, Kentucky, the company told its employees via text message Thursday. 

Amazon indicated that the worker who tested positive for COVID-19 was last "on-site" on March 23. Amazon is following guidance from the Centers for Disease Control and Prevention to minimize the spread of the virus, the message said. 

The warehouse, which is known as SDF-9, reopened Wednesday after a little more than a week off. The company made no mention of any planned future closure as a result of this fourth positive case.

"We are supporting the individuals who are focused on their recovery," Amazon spokesman Andre Woodson said in an email. "We are following guidelines from health officials and medical experts, and are taking extreme measures to ensure the safety of employees at our site."

This story will be updated.

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Reach reporter Chris Otts at 502-585-0822, cotts@wdrb.com, on Twitter or on Facebook. Copyright 2020 WDRB Media. All rights reserved.