On Friday (Dec. 18), state officials confirmed that Colorado will receive thousands fewer COVID-19 vaccine doses than originally anticipated in the second shipment of pharmaceutical company Pfizer's COVID-19 vaccine.

Conor Cahill, a spokesperson for Gov. Jared Polis’ Office, said the state had anticipated to receive 56,550 Pfizer vaccine doses on Friday; Now, Cahill says the state should expect to receive 39,780 doses — a difference of about 30%, or 16,770.

The change was made by top officials among the federal government’s Operation Warp Speed (OWS), Cahill said.

An email sent by the Colorado State Joint Information Center stated the following:

“Currently, the CDC notifies the state on a week by week basis what we can expect for the upcoming week. OWS is changing their approach so that we get the same allocation each week. If additional doses become available, OWS will distribute those additional doses periodically."

Pfizer's second shipment of the COVID-19 vaccine is expected to arrive in Colorado early next week, state officials said.

According to the Denver Post, 25,740 of the 39,780 vaccine doses will be transferred to the Center for Disease Control Pharmacy Partnership Program to vaccinate residents and staff at Colorado’s skilled nursing facilities and 14,040 will be assigned to medical providers, as per reports from the State Joint Information Center.

As of Thursday (Dec. 17), 11,016 doses of the Pfizer vaccine had been administered to health care workers across Colorado.

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