Risk of Absence of Measles Antibody in Healthcare Personnel and Efficacy of Booster Vaccination

Risk of Absence of Measles Antibody in Healthcare Personnel and Efficacy of Booster Vaccination

We aimed to identify the presence of the measles IgG antibody (mIgG-Ab) in healthcare personnel and finding out who needs the measles vaccination. The history of measles vaccination was obtained from the national vaccine registry. A baseline mIgG-Ab test was performed, and the measles vaccine was ad...

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Bibliographic Details
Published in:Vaccines (Basel) Vol. 9; no. 5; p. 501
Main Authors: Kim, Chung-Jong, Bae, Ji-Yun, Jun, Kang-Il, Chung, Hae-Sun, Kim, Aeyeon, Kim, Jihee, Son, Hee-Jung, Lee, Miae, Choi, Hee-Jung
Format: Journal Article
Language:English
Published: Basel MDPI AG 12-05-2021
MDPI
Subjects:
Age
Antibodies
Dosage
Employees
Health care
health personnel
Health risks
IgG antibody
Immune status
Immunoglobulin G
Measles
Medical personnel
Mumps
Personnel
Pregnancy
Rubella
Seroconversion
Serology
Vaccination
Vaccines
South Korea
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Summary:We aimed to identify the presence of the measles IgG antibody (mIgG-Ab) in healthcare personnel and finding out who needs the measles vaccination. The history of measles vaccination was obtained from the national vaccine registry. A baseline mIgG-Ab test was performed, and the measles vaccine was administered to participants who tested negative or equivocal for mIgG-Abs. During the study, 2885 (87.3%) of the 3303 employees were tested for measles serostatus. The baseline seropositivity rate for mIgG-Abs was 91.9%. Among the 234 seronegative cases, 82.9% were born after 1985. The seroprevalence rate was lower in those who received the measles–mumps–rubella (MMR) vaccine >10 years before the testing time, especially if they were born after 1985 and if there was only one previous record of vaccination. Among the 234 seronegative cases, MMR vaccination was administered in 174 cases, of which serostatus was evaluated in 146 cases. After the first dose, positive seroconversion was achieved in 126 participants (86.3%). After a second dose, 15 achieved (75.0%) positive seroconversion. In healthcare personnel born after the period when measles incidence significantly decreased, it may be necessary to reassess their immune status for measles if more than 10 years have elapsed since the last vaccination.
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ISSN:2076-393X
2076-393X
DOI:10.3390/vaccines9050501