In adults older than 40 years, would you check mumps titers and, if negative, provide a booster?
—Elaine Der, MHS, ARNP-C, San Francisco
Acceptable presumptive evidence of immunity to mumps includes birth before 1957, documented administration of one dose of live mumps vaccine, or prior diagnosis of mumps documented by a medical provider. If your patient does not meet any of these criteria, check the mumps immunoglobulin G antibody. The results are usually reported as negative, equivocal, or positive. Persons with negative and equivocal results are considered susceptible (unless the equivocal test is repeated and is positive) and are candidates for immunization against measles, mumps, and rubella.
—Jo Ann Deasy, PA-C, MPH (114-8)
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