Measles seroprevalence among healthcare workers in South Korea during the post-elimination period

Han, Seung-Beom; Yi, Yunmi; Ji, Seul Ki; Jang, So Hee; Park, Min Hee; Lee, Ji Eun; Jeong, Hyeok; Shin, Soyoung

doi:10.1080/21645515.2021.1888623

Cited by 11 publications

(15 citation statements)

References 22 publications

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“…The seroprevalence of measles and VZV was significantly different between occupational groups. In previous studies, the seroprevalence of measles and VZV were significantly different between the occupational groups [14,46]. However, statistical significance was not observed when the multivariable analysis was conducted, including age, sex, occupation, and vaccination history.…”

Section: Discussionmentioning

confidence: 82%

“…This variation in seropositive rate could result from the changes in vaccine strategy and the incidence of measles in Korea. Previous studies similarly reported the seroprevalence of measles from 73% to 93% among HCWs [14][15][16][17][18]. The seroprevalence of measles was lower than the threshold of population immunity and significantly lower in younger adults than in older adults, and this is one of the causes of the recent measles outbreaks in HCWs.…”

Section: Discussionmentioning

confidence: 87%

“…Some studies reported enhanced immunity for measles after the third vaccination [43][44][45]. Furthermore, seroconversion occurred in 99% of seronegative HCWs who received catch-up vaccination for measles [14]. However, more studies are needed to assess the adequate target, effectiveness, adverse effects of the third vaccination, and cost-effectiveness.…”

Section: Discussionmentioning

confidence: 99%

“…In a previous study that evaluated the seroprevalence of measles in Korea, the seroprevalence declined with time in the general adult population, particularly in those born between 1990 and 2001 [13]. The seroprevalence of measles in healthcare workers (HCWs) also reduced with time and was reported to be between 40% and 90% in HCWs who were born in the 1990s [14][15][16][17][18]. The waning effect of immunity might cause a decrease in the seroprevalence of measles [16].…”

Section: Introductionmentioning

confidence: 99%

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Seroprevalence of Varicella-Zoster Virus and Measles among Healthcare Workers in a Tertiary Medical Center in Korea

et al. 2022

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Measles and varicella still occur in the general population despite the widespread vaccination against them, and healthcare workers (HCWs) are still at risk of exposure to these diseases. Here, we evaluated the seroprevalence of measles and varicella-zoster virus (VZV) in HCWs and the trend of seroprevalence according to age, birth year, and occupational group. The serostatuses of measles and VZV of HCWs during new employee medical examinations between October 2015 and October 2021 were included. Thereafter, the trends of seroprevalence according to age, birth year, and occupational groups were evaluated. Overall, 2070 and 1827 HCWs were evaluated for VZV and measles serostatus, respectively. The seroprevalences of VZV and measles were 91% (1884/2070) and 70% (1284/1827), respectively. Younger HCWs had a significantly lower seroprevalence of measles (p = 0.02, age) and VZV (p = 0.003, birth year and p < 0.001, age). The seroprevalence of measles and VZV was significantly higher among doctors and nursing assistants than among nurses and other HCWs (p < 0.001 in both). In conclusion, the seroprevalence of measles and VZV significantly decreased in younger HCWs. Additionally, monitoring the serostatus of measles and VZV and the immunization of susceptible HCWs are required to prepare and control infectious diseases in healthcare facilities.

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Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Seroprevalence of Varicella-Zoster Virus and Measles among Healthcare Workers in a Tertiary Medical Center in Korea

et al. 2022

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“…Moreover, the overall measles seroprevalence among HCWs in South Korea (92%) is similar to the present results. South Korea’s experience with a measles epidemic in 2019, where more than two-thirds of cases were caused by in-hospital transmission, despite the WHO declaring this disease to have been eliminated since 2014, suggests that attention needs to be maintained regarding vaccine-preventable diseases [ 26 , 27 ].…”

Section: Discussionmentioning

confidence: 99%

Seroprevalence for Measles, Varicella, Mumps and Rubella in the Trainee Obstetric Population: A Survey in Southern Italy

Perfetto,

Paduano,

Grimaldi

et al. 2024

Vaccines

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Background: Despite the efforts of the World Health Organization, some childhood viral diseases, for which there is already an effective vaccine, have not yet been eradicated. Among these, we find varicella, mumps, measles, and rubella, which although in most cases have a benign course, can in some cases be responsible for infectious outbreaks, especially in nosocomial settings. The aim of this study was to verify the immunological situation of a cohort of trainee obstetricians in Campania regarding varicella, mumps, measles, and rubella to be used as an example for the evaluation of possible preventive strategies to avoid infectious outbreaks. Methods: All the samples collected and sent to the laboratory were eligible for analysis and have been included in the study. Specific IgG for varicella, measles, mumps, and rubella were assayed on serum samples taken from 517 trainee obstetricians using the enzyme-linked immunosorbent assay (ELISA) technique. The seropositivity results were statistically analyzed by correlating them to age group and gender. Results: The results obtained show that a percentage of trainee obstetricians tested do not have an effective immunological coverage against at least one of the vaccine-preventable diseases considered, especially for mumps. Conclusions: Therefore, it is proposed to extend surveillance to other professionals in contact with frail patients and increase awareness of vaccination campaigns.

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Immunization requirements in medical school accreditation standards

Gaviola¹,

Desai²

2024

Vaccine

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Measles seroprevalence among healthcare workers in South Korea during the post-elimination period

Cited by 11 publications

References 22 publications

Seroprevalence of Varicella-Zoster Virus and Measles among Healthcare Workers in a Tertiary Medical Center in Korea

Seroprevalence of Varicella-Zoster Virus and Measles among Healthcare Workers in a Tertiary Medical Center in Korea

Seroprevalence for Measles, Varicella, Mumps and Rubella in the Trainee Obstetric Population: A Survey in Southern Italy

Immunization requirements in medical school accreditation standards

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