Seroepidemiological studies
Population based sero-epidemiological studies have often used
convenience samples of residual sera held in diagnostic or reference
laboratories.
Following the national Measles Control Campaign in 1998, similar
estimates of age-specific immunity to a number of vaccine preventable
diseases, including measles, were obtained in 1999 by a large
convenience sample conducted by the NCIRS and a 3-stage random
cluster sample conducted by VIDRL.
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here for reference
Laboratory-based surveillance of population immunity, together
with outbreak investigations, have now provided evidence of residual
measles susceptibility in young adults who, as infants, did not
receive the vaccine when it first became available.
The young adult group represents a potential focus of transmission
and infection with imported measles virus strains. Evidence from
Victoria prompted the Commonwealth Department of Health and Ageing
to implement an immunisation campaign aimed at young adults in
2000.
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here for reference
