Government vaccine advisers are meeting to decide if the recipe for COVID-19 vaccines needs updating for this fall and winter.

But the framework has perhaps created as much confusion as clarity. Broadly, the FDA said it will limit approval of Covid-19 vaccines to people 65 and older and to those at risk for severe Covid outcomes, and will require vaccine makers to conduct clinical trials investigating whether the shots benefit healthy adults and children.

In a major policy change, the Food and Drug Administration has announced a plan to limit access to future COVID-19 shots only to people over 65 years old or those with an underlying health condition.