The Pfizer facility in Pleasant Prairie, Wisconsin. The company is awaiting approval from the Federal Drug Administration for its Covid-19 vaccine, developed with BioNTech. | Kamil Krzaczynski/AFP via Getty Images

Health workers and people in long-term care facilities take priority, but experts said the advice wasn’t specific enough.

With two Covid-19 vaccine candidates expected to be approved for the US market in the coming weeks, a group of experts met Tuesday to advise on which Americans should be immunized first. In a 13-1 vote, they put health care personnel and staff and residents of long-term care facilities at the front of the line.

The Advisory Committee on Immunization Practices (ACIP), a panel of independent medical and public health experts, has been meeting for months to think through the question of whom to prioritize during a pandemic while vaccine supplies are still