Because risk for COVID-19 can vary among different groups of people, prioritization for a vaccine will be tricky, and US President-elect Joe Biden will leave those decisions to health experts, Dr. Celine Gounder, a member of Biden's coronavirus advisory board, said Friday, CNN reported.

There will likely be a limited supply of coronavirus vaccine doses available immediately after a vaccine is authorized by the US Food and Drug Administration.

"Other than health care workers, others who will be first in line to get it will be people who do have chronic underlying medical conditions who are older, as well as communities of color who have been disproportionately impacted by this pandemic," Gounder told CNN.

The Centers for Disease Control and Prevention's Advisory Committee for Immunization Practices (ACIP) will recommend groups to receive the vaccine first.

"That's where it gets a bit more political and frankly, this is where the President-elect is leaving it to the public health experts and scientists to figure out how best to allocate the limited supply first," Gounder said.