The United States Army has launched an investigation into studies that three individuals had been by chance given the coronavirus vaccine at a Washington state army base.

“Joint Base Lewis-McChord is aware three people were inadvertently administered the Pfizer COVID-19 vaccine instead of another vaccine at the Lewis Main Exchange,” Lt. Col. Joey Sollinger with I Corps Public Affairs told the Military Times.

FILE - In this March 3, 2021 file photo, a vial of the Johnson & Johnson COVID-19 vaccine is displayed at South Shore University Hospital in Bay Shore, N.Y. (AP Photo/Mark Lennihan, File)

FILE – In this March 3, 2021 file photograph, a vial of the Johnson & Johnson COVID-19 vaccine is displayed at South Shore University Hospital in Bay Shore, N.Y. (AP Photo/Mark Lennihan, File)

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Sollinger added that “positive corrective action has been taken at this vaccination site to prevent such errors from happening again” including that an investigation has been launched.

The unintended vaccinations occurred at Joint Base Lewis-McChord south of Tacoma, Washington. The base is house to I Corps and 62d Airlift Wing.

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Los Angeles, CA - May 13: Bottles of the three current COVID-19 vaccines from Johnson & Johnson, Moderna and Pfizer, with hypodermics needles, photographed at the COVID-19 vaccination site at Kedren Community Health Center, in Los Angeles, CA, Thursday, May 13, 2021.

Los Angeles, CA – May 13: Bottles of the three present COVID-19 vaccines from Johnson & Johnson, Moderna and Pfizer, with hypodermics needles, photographed on the COVID-19 vaccination web site at Kedren Community Health Center, in Los Angeles, CA, Thursday, May 13, 2021.
(Jay L. Clendenin / Los Angeles Times through Getty Images)

View of the Pfizer Global Research and Development Laboratories on Friday, August 21, 2009 in San Diego, CA.Many pharmaceutical companies are in a race to find cancer killing drugs. (Photo by Sandy Huffaker/Corbis via Getty Images)

View of the Pfizer Global Research and Development Laboratories on Friday, August 21, 2009 in San Diego, CA.Many pharmaceutical firms are in a race to search out most cancers killing medicine. (Photo by Sandy Huffaker/Corbis through Getty Images)
(Photo by Sandy Huffaker/Corbis through Getty Images)

The army has not confirmed the identities of the individuals concerned.

As of Oct. 21, the Defense Department has reported 248,865 instances of COVID-19 throughout the providers, with 1,282 new studies between Oct. 13 and Oct. 20.