Measles outbreak in the sanitary area of Guadalajara (Spain) : Difficulty in microbiological diagnosis in the era of its elimination
Copyright © 2021 Sociedad Española de Enfermedades Infecciosas y Microbiología Clínica. Publicado por Elsevier España, S.L.U. All rights reserved..
INTRODUCTION: In Spain, like in other countries where endemic measles has been eliminated, there is a need for available diagnostic tools for confirming any cases in order to prevent and control its transmission. We describe the different microbiological tests used for the diagnosis of measles during an outbreak that occurred in 2019 in the province of Guadalajara (Spain).
METHODS: Serological and molecular tests were performed at the Microbiology laboratory of the Guadalajara University Hospital and at the National Center for Microbiology of the Carlos III Health Institute (Majadahonda, Spain). Patient data were obtained from the surveillance system.
RESULTS: A total of 43 patients had a laboratory diagnosis of measles: 29 cases by PCR (pharyngeal exudate or urine) and positive specific IgM, 11 cases by PCR, and 3 cases only by a positive IgM. Genotype D8 was identified in 35 confirmed cases and genotype A in 2 that were discarded as post-vaccination cases. PCR was positive in the acute sera of 11 out of 14 patients with a negative IgM. Eleven confirmed cases had recieved one or 2 vaccine doses. Twelve adult patients were hospitalizated, all of them with a diagnostic of hepatitis.
CONCLUSIONS: The combination of molecular tests and the presence of specific IgG and IgM are necessary for a correct diagnosis of measles and also to classify patients with a breakthrough infection or vaccine failures (primary or secondary). Genotyping is essential for the correct classification of the patients in the context of a measles elimination program.
| Errataetall: |
CommentIn: Enferm Infecc Microbiol Clin (Engl Ed). 2022 Dec;40(10):529-531. - PMID 36464470 |
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2021 |
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| Enthalten in: |
Enfermedades infecciosas y microbiologia clinica (English ed.) - (2021) vom: 21. Aug. |
| Sprache: |
Englisch |
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| Weiterer Titel: |
Brote de sarampión en el área sanitaria de Guadalajara (España): dificultad en el diagnóstico microbiológico en la era de su eliminación |
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| Beteiligte Personen: |
González-Praetorius, Alejandro [VerfasserIn] |
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| Links: |
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| Themen: |
Diagnóstico |
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| Anmerkungen: |
Date Revised 20.02.2024 published: Print-Electronic CommentIn: Enferm Infecc Microbiol Clin (Engl Ed). 2022 Dec;40(10):529-531. - PMID 36464470 Citation Status Publisher |
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| doi: |
10.1016/j.eimc.2021.07.011 |
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| 245 | 1 | 0 | |a Measles outbreak in the sanitary area of Guadalajara (Spain) |b Difficulty in microbiological diagnosis in the era of its elimination |
| 246 | 3 | 3 | |a Brote de sarampión en el área sanitaria de Guadalajara (España): dificultad en el diagnóstico microbiológico en la era de su eliminación |
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| 500 | |a Citation Status Publisher | ||
| 520 | |a Copyright © 2021 Sociedad Española de Enfermedades Infecciosas y Microbiología Clínica. Publicado por Elsevier España, S.L.U. All rights reserved. | ||
| 520 | |a INTRODUCTION: In Spain, like in other countries where endemic measles has been eliminated, there is a need for available diagnostic tools for confirming any cases in order to prevent and control its transmission. We describe the different microbiological tests used for the diagnosis of measles during an outbreak that occurred in 2019 in the province of Guadalajara (Spain) | ||
| 520 | |a METHODS: Serological and molecular tests were performed at the Microbiology laboratory of the Guadalajara University Hospital and at the National Center for Microbiology of the Carlos III Health Institute (Majadahonda, Spain). Patient data were obtained from the surveillance system | ||
| 520 | |a RESULTS: A total of 43 patients had a laboratory diagnosis of measles: 29 cases by PCR (pharyngeal exudate or urine) and positive specific IgM, 11 cases by PCR, and 3 cases only by a positive IgM. Genotype D8 was identified in 35 confirmed cases and genotype A in 2 that were discarded as post-vaccination cases. PCR was positive in the acute sera of 11 out of 14 patients with a negative IgM. Eleven confirmed cases had recieved one or 2 vaccine doses. Twelve adult patients were hospitalizated, all of them with a diagnostic of hepatitis | ||
| 520 | |a CONCLUSIONS: The combination of molecular tests and the presence of specific IgG and IgM are necessary for a correct diagnosis of measles and also to classify patients with a breakthrough infection or vaccine failures (primary or secondary). Genotyping is essential for the correct classification of the patients in the context of a measles elimination program | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Diagnosis | |
| 650 | 4 | |a Diagnóstico | |
| 650 | 4 | |a Hepatitis | |
| 650 | 4 | |a Measles | |
| 650 | 4 | |a Sarampión | |
| 650 | 4 | |a Vaccine | |
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