Can you still get a measles and rubella vaccine at 20 despite already having mumps?

Yes, you can still receive the measles and rubella vaccine at age 20, even if you have had mumps. The measles, mumps, and rubella (MMR) vaccine is recommended regardless of past infections, as it helps provide immunity against measles and rubella, which can lead to serious health complications. It's advisable to consult a healthcare provider to discuss your vaccination history and any specific recommendations.