Health officials worry that people will reject vaccinations
FILE - In this Friday, Jan. 22, 2021, file photo, empty vials of the Pfizer-BioNTech COVID-19 vaccine are seen at a vaccination center at the University of Nevada, Las Vegas. Demand for coronavirus vaccines among early priority groups in Nevada has been high, but officials worry that they may encounter resistance among people to get the shots as more become eligible. (AP Photo/John Locher, File)

FILE - In this Friday, Jan. 22, 2021, file photo, empty vials of the Pfizer-BioNTech COVID-19 vaccine are seen at a vaccination center at the University of Nevada, Las Vegas. Demand for coronavirus vaccines among early priority groups in Nevada has been high, but officials worry that they may encounter resistance among people to get the shots as more become eligible. (AP Photo/John Locher, File)

Feb. 03, 2021 02:24 PM EST
FILE - In this Jan. 22, 2021, file photo a certified medical assistant, prepares doses of the Pfizer-BioNTech COVID-19 vaccine at a vaccination center at the University of Nevada, Las Vegas. Demand for coronavirus vaccines among early priority groups in Nevada has been high, but officials worry that they may encounter resistance among people to get the shots as more become eligible. (AP Photo/John Locher, File)

FILE - In this Jan. 22, 2021, file photo a certified medical assistant, prepares doses of the Pfizer-BioNTech COVID-19 vaccine at a vaccination center at the University of Nevada, Las Vegas. Demand for coronavirus vaccines among early priority groups in Nevada has been high, but officials worry that they may encounter resistance among people to get the shots as more become eligible. (AP Photo/John Locher, File)

Feb. 03, 2021 02:25 PM EST