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Pampaka D, López-Perea N, Fernández-García A, Huertas-Zarco I, Castellanos-Martínez M, Villatoro-Bongiorno K, Roig-Sena J, Torner N, Mar Mosquera M, Echevarría JE, Prats JF, Masa-Calles J. An interregional measles outbreak in Spain with nosocomial transmission, November 2017 to July 2018. Euro Surveill 2023; 28. [PMID: 37103785 DOI: 10.2807/1560-7917.es.2023.28.17.2200634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023] Open
Abstract
Given sustained high vaccination coverage and enhanced surveillance for measles, Spain has been free of endemic measles transmission since 2014, achieving elimination certification from the World Health Organization in 2017. In November 2017, measles was introduced through an imported case travelling to the Valencian Community, causing an interregional outbreak. Here, we describe the outbreak using data reported to the national epidemiological surveillance network. The outbreak involved 154 cases (67 males, 87 females) notified in four regions; 148 were laboratory-confirmed and six epidemiologically linked. Most cases were adults aged 30-39 (n = 62, 40.3%) years. Sixty-two cases were hospitalised (40.3%) and 35 presented complications (22.7%). Two thirds of the cases (n = 102) were unvaccinated including 11 infants (≤ 1 year) not yet eligible for vaccination. The main route of transmission was nosocomial; at least six healthcare facilities and 41 healthcare workers and support personnel were affected. Sequencing of the viral nucleoprotein C-terminus (N450) identified genotype B3, belonging to the circulating MVs/Dublin.IRL/8.16-variant. Control measures were implemented, and the outbreak was contained in July 2018. The outbreak highlighted that raising awareness about measles and improving the vaccination coverage in under-vaccinated subgroups and personnel of healthcare facilities are key measures for prevention of future outbreaks.
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Affiliation(s)
- Despina Pampaka
- European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
- National Centre for Epidemiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Noemí López-Perea
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
- National Centre for Epidemiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Aurora Fernández-García
- National Centre for Microbiology, Instituto de Salud Carlos III, Madrid, Spain
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - Isabel Huertas-Zarco
- Servei de Vigilància i Control Epidemiològic, Conselleria de Sanitat Universal i Salut Pública, Comunitat Valenciana, Valencia, Spain
| | - Maite Castellanos-Martínez
- Servei de Vigilància i Control Epidemiològic, Conselleria de Sanitat Universal i Salut Pública, Comunitat Valenciana, Valencia, Spain
| | - Katja Villatoro-Bongiorno
- Servei de Vigilància i Control Epidemiològic, Conselleria de Sanitat Universal i Salut Pública, Comunitat Valenciana, Valencia, Spain
| | - Javier Roig-Sena
- Servei de Vigilància i Control Epidemiològic, Conselleria de Sanitat Universal i Salut Pública, Comunitat Valenciana, Valencia, Spain
| | - Nuria Torner
- Universitat de Barcelona, Barcelona, Spain
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - María Mar Mosquera
- Microbiology Department, Hospital Clínic de Barcelona, Barcelona, Spain
- Universitat de Barcelona, Barcelona, Spain
| | - Juan Emilio Echevarría
- National Centre for Microbiology, Instituto de Salud Carlos III, Madrid, Spain
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Josefa Masa-Calles
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
- National Centre for Epidemiology, Instituto de Salud Carlos III, Madrid, Spain
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