Measles
Acceptable presumptive evidence of Measles Immunity (at least one of the following):
• Documentation of age-appropriate vaccination against measles virus.
• Laboratory evidence of immunity (IgG in serum; equivocal results should be considered negative).
• Laboratory confirmation of measles.
• Birth before 1957.
Persons
who have measles-specific IgG antibody that is detectable by any
commonly used serological assay are considered to have adequate
laboratory evidence of measles immunity. Persons with an equivocal
serologic test result do not have adequate presumptive evidence of
immunity and should be considered susceptible unless they have other
evidence of measles immunity.
Documented age-appropriate
vaccination supersedes the results of subsequent serologic testing. If a
person who has two documented doses of measles-containing vaccine is
tested serologically and is determined to have negative or equivocal
measles results, it is not recommended that the person receive an
additional dose of vaccine. Such persons should be considered to have
presumptive evidence of immunity.
Mumps
Acceptable presumptive evidence of Mumps Immunity (at least one of the following):
• Documentation of age-appropriate vaccination against mumps virus.
• Laboratory evidence of immunity (IgG in serum; equivocal results should be considered negative).
• Laboratory confirmation of disease.
• Born before 1957.
Rubella
Acceptable presumptive evidence of Rubella Immunity (at least one of the following):
• Documentation of 1-dose of live rubela virus-containing vaccine.
• Laboratory evidence of immunity (IgG in serum; equivocal results should be considered negative).
• Laboratory confirmation of disease.
• Born before 1957 (except women of childbearing age who could become pregnant).
