FILE- Dr. Francis Collins, Director of the National Institutes of Health (NIH), holds up a model of COVID-19, known as coronavirus, during a Senate Appropriations subcommittee hearing on the plan ...

FILE- Dr. Francis Collins, Director of the National Institutes of Health (NIH), holds up a model of COVID-19, known as coronavirus, during a Senate Appropriations subcommittee hearing on the plan ...

FILE- Dr. Francis Collins, Director of the National Institutes of Health (NIH), holds up a model of COVID-19, known as coronavirus, during a Senate Appropriations subcommittee hearing on the plan ...

FILE- Dr. Francis Collins, Director of the National Institutes of Health (NIH), holds up a model of COVID-19, known as coronavirus, during a Senate … ...

WASHINGTON (AP) — Dr. Francis Collins, a renowned geneticist and former longtime director of the National Institutes of Health, announced Saturday that he has retired, leaving an agency being ...