ANNAPOLIS, Md. (WJZ) — The winter weather affecting much of the country, including Maryland, is leading to delays in shipping COVID-19 vaccines, Gov. Larry Hogan’s office said Thursday.

In an update to local leaders on Thursday, state officials said they anticipate delays in shipments and deliveries, including as part of the Federal Retail Pharmacy Program.

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On Wednesday, the state’s health department said Moderna vaccines weren’t shipped on Monday or Tuesday and were not likely to ship on Wednesday either. Due to the weather, officials said they expect a “significant back log of orders for distribution once operations resume and every effort will be made to catch up as soon as possible while safely delivering the vaccines.”

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Pfizer vaccines were also not shipped on Monday but limited quantities were on Tuesday and Wednesday, they added.

A number of COVID-19 vaccination and testing sites, including those at Six Flags America and the Baltimore Convention Center, are closed Thursday due to the weather.

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CBS Baltimore Staff