Serological evaluation of immunity against Corynebacterium diphtheriae in the Peruvian adult population
The reemergence of diphtheria outbreaks in Latin America calls for an assessment of the level of immune protection in adults. This study estimated IgG levels against Corynebacterium diphtheriae in individuals immunized and unimmunized with dT or DTaP boosters over the past 10 years. A cross-sectiona...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | Human Vaccines & Immunotherapeutics |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21645515.2025.2550104 |
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| author | Tony Saldaña Ariadna Taboada-Reyes Maria Ines Chuquizana Lady Urbina-Perez Sofía E. Romero |
| author_facet | Tony Saldaña Ariadna Taboada-Reyes Maria Ines Chuquizana Lady Urbina-Perez Sofía E. Romero |
| author_sort | Tony Saldaña |
| collection | DOAJ |
| description | The reemergence of diphtheria outbreaks in Latin America calls for an assessment of the level of immune protection in adults. This study estimated IgG levels against Corynebacterium diphtheriae in individuals immunized and unimmunized with dT or DTaP boosters over the past 10 years. A cross-sectional study was conducted in 127 adults from Lima and Callao, divided according to recent vaccination history. Serum IgG levels were measured using an indirect ELISA (SERION ELISA® classic) and classified into four categories according to protection. The Mann-Whitney U test was used for comparative analysis. 26.8% showed no protection, while 62.2% showed certain or long-term protection. Among those vaccinated, 92.9% achieved protective levels, compared to 67.7% of those unvaccinated (p = .001). The 40–49 age group had the highest proportion of unprotected individuals (33.3%). Vaccination with dT or DTaP boosters was associated with protective IgG levels. A significant proportion of adults lacked immunity, especially among those who did not receive a booster, highlighting the need to strengthen immunization strategies in adults. |
| format | Article |
| id | doaj-art-bc5bddf534024e6284f2a688bb2729e7 |
| institution | Kabale University |
| issn | 2164-5515 2164-554X |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Human Vaccines & Immunotherapeutics |
| spelling | doaj-art-bc5bddf534024e6284f2a688bb2729e72025-08-26T10:05:38ZengTaylor & Francis GroupHuman Vaccines & Immunotherapeutics2164-55152164-554X2025-12-0121110.1080/21645515.2025.2550104Serological evaluation of immunity against Corynebacterium diphtheriae in the Peruvian adult populationTony Saldaña0Ariadna Taboada-Reyes1Maria Ines Chuquizana2Lady Urbina-Perez3Sofía E. Romero4Facultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, PeruFacultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, PeruControl de Calidad, AT Biotec Laboratorios, Lima, PerúControl de Calidad, AT Biotec Laboratorios, Lima, PerúFacultad de Medicina, Universidad Nacional Mayor de San Marcos, Lima, PeruThe reemergence of diphtheria outbreaks in Latin America calls for an assessment of the level of immune protection in adults. This study estimated IgG levels against Corynebacterium diphtheriae in individuals immunized and unimmunized with dT or DTaP boosters over the past 10 years. A cross-sectional study was conducted in 127 adults from Lima and Callao, divided according to recent vaccination history. Serum IgG levels were measured using an indirect ELISA (SERION ELISA® classic) and classified into four categories according to protection. The Mann-Whitney U test was used for comparative analysis. 26.8% showed no protection, while 62.2% showed certain or long-term protection. Among those vaccinated, 92.9% achieved protective levels, compared to 67.7% of those unvaccinated (p = .001). The 40–49 age group had the highest proportion of unprotected individuals (33.3%). Vaccination with dT or DTaP boosters was associated with protective IgG levels. A significant proportion of adults lacked immunity, especially among those who did not receive a booster, highlighting the need to strengthen immunization strategies in adults.https://www.tandfonline.com/doi/10.1080/21645515.2025.2550104Diphtheriavaccinationadultsimmunity |
| spellingShingle | Tony Saldaña Ariadna Taboada-Reyes Maria Ines Chuquizana Lady Urbina-Perez Sofía E. Romero Serological evaluation of immunity against Corynebacterium diphtheriae in the Peruvian adult population Human Vaccines & Immunotherapeutics Diphtheria vaccination adults immunity |
| title | Serological evaluation of immunity against Corynebacterium diphtheriae in the Peruvian adult population |
| title_full | Serological evaluation of immunity against Corynebacterium diphtheriae in the Peruvian adult population |
| title_fullStr | Serological evaluation of immunity against Corynebacterium diphtheriae in the Peruvian adult population |
| title_full_unstemmed | Serological evaluation of immunity against Corynebacterium diphtheriae in the Peruvian adult population |
| title_short | Serological evaluation of immunity against Corynebacterium diphtheriae in the Peruvian adult population |
| title_sort | serological evaluation of immunity against corynebacterium diphtheriae in the peruvian adult population |
| topic | Diphtheria vaccination adults immunity |
| url | https://www.tandfonline.com/doi/10.1080/21645515.2025.2550104 |
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