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More evidence finding no link between MMR vaccination and autism

KEY POINT

The MMR vaccine was not associated with an increased risk of autism and did not trigger autism in susceptible subgroups of patients (e.g., environmental, family risk factors), according to results of a nationwide Danish cohort study published in the Annals of Internal Medicine. In addition, no clustering of autism cases was observed for any specific time period after vaccination.

SOURCES

Hviid A, et al. Measles, mumps, rubella vaccination and autism: a nationwide cohort study. Ann Intern Med. 2019;[Epub ahead of print].

Omer SB, et al. Further evidence of MMR vaccine safety: scientific and communications considerations. Ann Intern Med. 2019;[Epub ahead of print].