A health worker injects a person during clinical trials for a Covid-19 vaccine at Research Centers of America in Hollywood, Florida.

As trust in federal health agencies has withered over the last few months, a group of Black physicians has been working on an antidote: creating their own expert task force to independently vet regulators' decisions about Covid-19 drugs and vaccines as well as government recommendations for curbing the pandemic.

Organized by the National Medical Association — founded in 1895 as an answer to racist professional societies excluding Black doctors — the committee is meant to safeguard against any unscientific guidance from the Centers for Disease Control and Prevention and the Food and Drug Administration.