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Effect of Winter School Breaks on Influenza-like Illness, Argentina, 2005–2008

School closures are used to reduce seasonal and pandemic influenza transmission, yet evidence of their effectiveness is sparse. In Argentina, annual winter school breaks occur during the influenza season, providing an opportunity to study this intervention. We used 2005–2008 national weekly surveill...

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Autores principales: Garza, Roberto C., Basurto-Dávila, Ricardo, Ortega-Sanchez, Ismael R., Carlino, Luis Oreste, Meltzer, Martin I., Albalak, Rachel, Balbuena, Karina, Orellano, Pablo, Widdowson, Marc-Alain, Averhoff, Francisco
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Centers for Disease Control and Prevention 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3713818/
https://www.ncbi.nlm.nih.gov/pubmed/23735682
http://dx.doi.org/10.3201/eid1906.120916
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author Garza, Roberto C.
Basurto-Dávila, Ricardo
Ortega-Sanchez, Ismael R.
Carlino, Luis Oreste
Meltzer, Martin I.
Albalak, Rachel
Balbuena, Karina
Orellano, Pablo
Widdowson, Marc-Alain
Averhoff, Francisco
author_facet Garza, Roberto C.
Basurto-Dávila, Ricardo
Ortega-Sanchez, Ismael R.
Carlino, Luis Oreste
Meltzer, Martin I.
Albalak, Rachel
Balbuena, Karina
Orellano, Pablo
Widdowson, Marc-Alain
Averhoff, Francisco
author_sort Garza, Roberto C.
collection PubMed
description School closures are used to reduce seasonal and pandemic influenza transmission, yet evidence of their effectiveness is sparse. In Argentina, annual winter school breaks occur during the influenza season, providing an opportunity to study this intervention. We used 2005–2008 national weekly surveillance data of visits to a health care provider for influenza-like illness (ILI) from all provinces. Using Serfling-specified Poisson regressions and population-based census denominators, we developed incidence rate ratios (IRRs) for the 3 weeks before, 2 weeks during, and 3 weeks after the break. For persons 5–64 years of age, IRRs were <1 for at least 1 week after the break. Observed rates returned to expected by the third week after the break; overall decrease among persons of all ages was 14%. The largest decrease was among children 5–14 years of age during the week after the break (37% lower IRR). Among adults, effects were weaker and delayed. Two-week winter school breaks significantly decreased visits to a health care provider for ILI among school-aged children and nonelderly adults.
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spelling pubmed-37138182013-07-24 Effect of Winter School Breaks on Influenza-like Illness, Argentina, 2005–2008 Garza, Roberto C. Basurto-Dávila, Ricardo Ortega-Sanchez, Ismael R. Carlino, Luis Oreste Meltzer, Martin I. Albalak, Rachel Balbuena, Karina Orellano, Pablo Widdowson, Marc-Alain Averhoff, Francisco Emerg Infect Dis Research School closures are used to reduce seasonal and pandemic influenza transmission, yet evidence of their effectiveness is sparse. In Argentina, annual winter school breaks occur during the influenza season, providing an opportunity to study this intervention. We used 2005–2008 national weekly surveillance data of visits to a health care provider for influenza-like illness (ILI) from all provinces. Using Serfling-specified Poisson regressions and population-based census denominators, we developed incidence rate ratios (IRRs) for the 3 weeks before, 2 weeks during, and 3 weeks after the break. For persons 5–64 years of age, IRRs were <1 for at least 1 week after the break. Observed rates returned to expected by the third week after the break; overall decrease among persons of all ages was 14%. The largest decrease was among children 5–14 years of age during the week after the break (37% lower IRR). Among adults, effects were weaker and delayed. Two-week winter school breaks significantly decreased visits to a health care provider for ILI among school-aged children and nonelderly adults. Centers for Disease Control and Prevention 2013-06 /pmc/articles/PMC3713818/ /pubmed/23735682 http://dx.doi.org/10.3201/eid1906.120916 Text en https://creativecommons.org/licenses/by/4.0/This is a publication of the U.S. Government. This publication is in the public domain and is therefore without copyright. All text from this work may be reprinted freely. Use of these materials should be properly cited.
spellingShingle Research
Garza, Roberto C.
Basurto-Dávila, Ricardo
Ortega-Sanchez, Ismael R.
Carlino, Luis Oreste
Meltzer, Martin I.
Albalak, Rachel
Balbuena, Karina
Orellano, Pablo
Widdowson, Marc-Alain
Averhoff, Francisco
Effect of Winter School Breaks on Influenza-like Illness, Argentina, 2005–2008
title Effect of Winter School Breaks on Influenza-like Illness, Argentina, 2005–2008
title_full Effect of Winter School Breaks on Influenza-like Illness, Argentina, 2005–2008
title_fullStr Effect of Winter School Breaks on Influenza-like Illness, Argentina, 2005–2008
title_full_unstemmed Effect of Winter School Breaks on Influenza-like Illness, Argentina, 2005–2008
title_short Effect of Winter School Breaks on Influenza-like Illness, Argentina, 2005–2008
title_sort effect of winter school breaks on influenza-like illness, argentina, 2005–2008
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3713818/
https://www.ncbi.nlm.nih.gov/pubmed/23735682
http://dx.doi.org/10.3201/eid1906.120916
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