Measles and mumps outbreaks in Lebanon: trends and links

Abstract Background Lebanon has experienced several measles and mumps outbreaks in the past 20 years. In this article, a case-based surveillance of both measles and mumps outbreaks in Lebanon was carried out in an attempt to outline factors contributing to the failure of elimination plans and to pro...

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Main Authors: Talal El Zarif, Mohamed Faisal Kassir, Nazih Bizri, Ghida Kassir, Umayya Musharrafieh, Abdul Rahman Bizri
Format: Article
Language:English
Published: BMC 2020-03-01
Series:BMC Infectious Diseases
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12879-020-04956-1
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author Talal El Zarif
Mohamed Faisal Kassir
Nazih Bizri
Ghida Kassir
Umayya Musharrafieh
Abdul Rahman Bizri
author_facet Talal El Zarif
Mohamed Faisal Kassir
Nazih Bizri
Ghida Kassir
Umayya Musharrafieh
Abdul Rahman Bizri
author_sort Talal El Zarif
collection DOAJ
description Abstract Background Lebanon has experienced several measles and mumps outbreaks in the past 20 years. In this article, a case-based surveillance of both measles and mumps outbreaks in Lebanon was carried out in an attempt to outline factors contributing to the failure of elimination plans and to provide potential solutions. The relationship between the outbreaks of both diseases was described and explored. Methods A retrospective descriptive study of confirmed cases of measles and mumps in Lebanon between 2003 and 2018 collected from the Lebanese Ministry of Public Health Epidemiological Surveillance Unit public database was carried out. The information collected was graphically represented taking into consideration dates of reported cases, age groups affected, and vaccination status. Results The mean number of measles cases was 150.25 cases/year in the 1–4 years age group, 87 cases/year in individuals aging between 5 and 14, and 63.68 cases/year in those > 14 years old. In the latter group, only 18.05% were unvaccinated. The mean number of mumps cases was 30.4 cases/year in the < 4 year age group and 53.8 cases/year in the 10–19 years age group. During the study period, every spike in measles cases was followed by a similar spike in mumps. 9.66% of measles cases occurred in individuals who received at least 2 doses of the vaccine, 52.26% in the unvaccinated, and 38% in those whose vaccination status was undetermined. Conclusions Measles in Lebanon is a disease of the pediatric population, but adults remain at risk. Outbreaks of mumps followed those of measles and were mainly among adolescents. Presence of a large number of Syrian refugees in the country may further complicate the situation. Vaccination activities need to be intensified.
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spelling doaj.art-1c89430a91604721b55a394e6460a0522022-12-21T17:49:31ZengBMCBMC Infectious Diseases1471-23342020-03-0120111010.1186/s12879-020-04956-1Measles and mumps outbreaks in Lebanon: trends and linksTalal El Zarif0Mohamed Faisal Kassir1Nazih Bizri2Ghida Kassir3Umayya Musharrafieh4Abdul Rahman Bizri5Faculty of Medicine, Lebanese UniversityFaculty of Medicine, American University of Beirut Medical CenterFaculty of Medicine, University of BalamandFaculty of Medicine, American University of Beirut Medical CenterDepartment of Family Medicine, American University of Beirut Medical CenterDivision of Infectious Diseases, Department of Internal Medicine, American University of Beirut Medical CenterAbstract Background Lebanon has experienced several measles and mumps outbreaks in the past 20 years. In this article, a case-based surveillance of both measles and mumps outbreaks in Lebanon was carried out in an attempt to outline factors contributing to the failure of elimination plans and to provide potential solutions. The relationship between the outbreaks of both diseases was described and explored. Methods A retrospective descriptive study of confirmed cases of measles and mumps in Lebanon between 2003 and 2018 collected from the Lebanese Ministry of Public Health Epidemiological Surveillance Unit public database was carried out. The information collected was graphically represented taking into consideration dates of reported cases, age groups affected, and vaccination status. Results The mean number of measles cases was 150.25 cases/year in the 1–4 years age group, 87 cases/year in individuals aging between 5 and 14, and 63.68 cases/year in those > 14 years old. In the latter group, only 18.05% were unvaccinated. The mean number of mumps cases was 30.4 cases/year in the < 4 year age group and 53.8 cases/year in the 10–19 years age group. During the study period, every spike in measles cases was followed by a similar spike in mumps. 9.66% of measles cases occurred in individuals who received at least 2 doses of the vaccine, 52.26% in the unvaccinated, and 38% in those whose vaccination status was undetermined. Conclusions Measles in Lebanon is a disease of the pediatric population, but adults remain at risk. Outbreaks of mumps followed those of measles and were mainly among adolescents. Presence of a large number of Syrian refugees in the country may further complicate the situation. Vaccination activities need to be intensified.http://link.springer.com/article/10.1186/s12879-020-04956-1MeaslesMumpsEliminationVaccineLebanon
spellingShingle Talal El Zarif
Mohamed Faisal Kassir
Nazih Bizri
Ghida Kassir
Umayya Musharrafieh
Abdul Rahman Bizri
Measles and mumps outbreaks in Lebanon: trends and links
BMC Infectious Diseases
Measles
Mumps
Elimination
Vaccine
Lebanon
title Measles and mumps outbreaks in Lebanon: trends and links
title_full Measles and mumps outbreaks in Lebanon: trends and links
title_fullStr Measles and mumps outbreaks in Lebanon: trends and links
title_full_unstemmed Measles and mumps outbreaks in Lebanon: trends and links
title_short Measles and mumps outbreaks in Lebanon: trends and links
title_sort measles and mumps outbreaks in lebanon trends and links
topic Measles
Mumps
Elimination
Vaccine
Lebanon
url http://link.springer.com/article/10.1186/s12879-020-04956-1
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AT nazihbizri measlesandmumpsoutbreaksinlebanontrendsandlinks
AT ghidakassir measlesandmumpsoutbreaksinlebanontrendsandlinks
AT umayyamusharrafieh measlesandmumpsoutbreaksinlebanontrendsandlinks
AT abdulrahmanbizri measlesandmumpsoutbreaksinlebanontrendsandlinks