TULSA, Okla. (AP) — The Tulsa Health Department is contacting 1,150 people who received improperly stored doses of the Pfizer coronavirus vaccine, according to city and state health officials.

The vaccine was kept in cold storage for up to two weeks longer than the recommended maximum of 14 days, Tulsa Health Department Director Bruce Dart said Wednesday.

The improper storage does not vaccine does not present a health risk, according to Dr. Gitanjali Pai, Chief Medical Officer at the Oklahoma State Department of Health.

“There is no medical risk to the individuals who received a dose of COVID-19 vaccine that had been in storage for longer than 14 days," Pai said. “However, past this 14-day mark, the vaccine may not be as effective at protecting you from COVID-19. For this reason, we are asking these individuals to receive another dose of the vaccine.”

The doses were administered May 3-17 at the James O. Goodwin Health Center, the Central Regional Health Center, the Sand Springs Health Center, and the North Regional Health and Wellness Center.

The federal Centers for Disease Control and Prevention recommends pregnant women not receive a third dose because of a lack of data, but that all others should get another vaccination.