While hospitals have started giving out Moderna’s vaccine, the CDC has not yet reported that data and there may be a lag in reporting shots given of both the Pfizer and Moderna vaccines.

The slow pace has barely picked up from the first week when 614,000 shots were given although nearly 2.9 million were shipped.

Hospitals said the first COVID-19 vaccinations started slowly last Monday as they navigated preparing the previously frozen shots for use, finding employees to run the vaccination clinics, and ensuring proper social distancing both before and after vaccination. Some said they did only about 100 shots the first day.