Detection of RNA of Mumps Virus during an Outbreak in a Population with a High Level of Measles, Mumps, and Rubella Vaccine Coverage https://www.ukcitizen.org/wp-content/uploads/2023/12/bellini-et-al-2008-detection-of-rna-of-mumps-virus-during-an-outbreak-in-a-population-with-a-high-level-of-measles.pdf
NIH Library of Medicine 2008 vaccine study