Wildhorse Resort & Casino on the Confederated Tribes of the Umatilla Indian Reservation reopened Wednesday afternoon following a 48-hour voluntary closure due to concerns of coronavirus.

The resort closed for a thorough cleaning Monday after Oregon's third presumed positive case of COVID-19 was found in one of their employees, a Umatilla County resident who was hospitalized for the disease in Walla Walla, Wash.

The Wildhorse employee worked in a restricted area of the building "in a role that does not involve contact with the public or kitchen facilities," according to a press release from spokeswoman Mary Liberty-Traughber on Wednesday.

Wildhorse's Board of Trustees and the Confederated Tribes decided to close to prevent any potential spread of the disease.

"Wildhorse promptly began sanitizing surfaces in each area of the resort’s main facility including the casino, hotel, Cineplex, Children’s Entertainment Center and arcade, restaurants and administrative offices," the release stated.

Crews sanitized the facilities through manual cleaning, and by using a "Clorox Total 360 System, an electrostatic spraying unit used by hospitals, clinics and schools."

It reopened at noon on Wednesday after an inspection and letter of certification from environmental health officials and regulatory inspectors. Resort activities will return to normal.