It was a report that likely prompted alarm for many women: rare, serious blood clots following vaccination for six Americans. All women, all of child-bearing age.

That update this week also came on the heels of similar global blood clot reports among mostly women following AstraZeneca-Oxford vaccinations, sparking fears that younger women — including those on hormonal birth control — may be more at risk.

But leading medical experts say it’s not that simple.

More research is needed, several of them told