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| Methods | Cohort study ‐ effectiveness of the mumps (MMR) third dose of MMR |
| Participants | Of 20,496 university students who were enrolled during the 2015 to 2016 academic year |
| Interventions | MMR vaccination. 98.1% of the students had received at least 2 doses of MMR vaccine. During the outbreak, 4783 received a third dose. |
| Outcomes | Mumps |
| Notes | Vaccination at 13 years before second doses ‐ age off‐target |
