Speaking before Congress, Health and Human Services Secretary Robert F. Kennedy Jr. misleadingly claimed that Europe doesn’t vaccinate children against chickenpox because a study shows that when you do, “you get shingles in older people.” While that is a theoretical concern, studies have not borne that out — and parts of Europe do vaccinate kids. Read more: https://www.factcheck.org/2025/05/rfk-jr-s-misleading-line-on-the-chickenpox-vaccine/