The U.S. Center for Disease Control and Prevention shows New York has received more than 1.8 million doses of the COVID-19 vaccine. But New York state says it has received only 934,925 first and second doses of the vaccine. 

So, why the difference? 

The discrepancy lies in how the CDC is reporting its allocation to states, and how New York is reporting what it actually received, according to Gareth Rhodes, an advisor to Gov. Andrew Cuomo. 

The CDC's number is "a global allocation number to New York that is not necessarily what's been delivered to New York so far," Rhodes said at a news conference on Friday.

The federal government's total also includes the federally administered effort through pharmacies to vaccinate people living in long-term care facilities. 

All told, New York has received 844,250 first doses of the vaccine and administered 623,172 shots, an allocation rate of 74%. For the second dose, 90,675 vaccines have been received and 84%, or 75,891 shots have been received over the last four weeks.

"We are not putting in there the doses that are coming in through this week," Rhodes said, adding 1.1 million doses are being distributed and put into people’s arms right now.

The rollout of the COVID-19 vaccine has stumbled over the last month in part due to the high demand and lack of supplies. New Yorkers have struggled to log in to a website to schedule an appointment, which may take up to 14 weeks to actually get the first shot.