Are many women immunized against rubella unnecessarily?

P. P. Mortimer, J. M.B. Edwards, A. D. Porter, Richard Tedder, J. E. Mace, A. Hutchinson

    Research output: Contribution to journalArticlepeer-review

    33 Citations (Scopus)

    Abstract

    Radial haemolysis (RH) was used to test sera for immunity to rubella from 1317 patients attending a general practice. One hundred and forty-one (10·7%) were treated as susceptible and offered an attenuated virus vaccine (RA 27/3). Pre-immunization sera from 43% of these patients were reactive at low levels in RH (< 15 international units rubella antibody per ml). Pre- (S1) and post- (S2) immunization sera from 66 vaccinees were studied in detail. Antibody was detected by RH, haemagglutination inhibition (HI) and enzyme-linked immunosorbent assay (ELISA), and the specific IgM response was measured by a solid-phase M-antibody capture radioimmunoassay (MACRIA). The vaccine-induced IgM response was only detected if the S1 serum was non-reactive by all tests for rubella antibody. It was weaker than that seen following wild virus infection. It could be detected reliably for six weeks, and in most cases for nine weeks, after immunization. In contrast, patients with S1 specimens reactive by RH, HI or ELISA never showed an IgM response in the S2 specimen despite ‘significant’ antibody rises often being present. It was considered that an IgM response to RA 27/3 was the best indicator of pre-immunization susceptibility to rubella. The failure of many vaccinees to make an IgM response implied that a significant proportion were already immune. It is suggested that the threshold for a report of immunity to rubella could be lowered from 15 i.u. antibody per ml and so fewer women immunized without vaccine being withheld from those who need it.

    Original languageEnglish
    Pages (from-to)131-138
    Number of pages8
    JournalJournal of Hygiene
    Volume87
    Issue number1
    DOIs
    Publication statusPublished - Aug 1981

    Bibliographical note

    Copyright:
    Copyright 2016 Elsevier B.V., All rights reserved.

    Fingerprint

    Dive into the research topics of 'Are many women immunized against rubella unnecessarily?'. Together they form a unique fingerprint.

    Cite this