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Targeted school closure policies may help the fight against pandemic influenza

January 21, 2016

Targeted school closure policies may help mitigating the spread of pandemic influenza, while entailing lower social costs than more traditional policies, such as nationwide school closure. This emerges from a modeling study published in PLOS Computational Biology led by Laura Fumanelli.

In the work, the authors simulate influenza spread and evaluate the impact of four different school closure types: nationwide, countywide (all schools in a county), reactive school-by-school (entire school when student absenteeism exceeds a certain threshold) and reactive gradual closure (classes first, then grades, and finally the entire school).

The researchers find that gradual and countywide closures are the two most effective strategies in terms of number of averted cases and school weeks lost per student. These approaches entail lower social costs than nationwide closure since they involve a lower number of students and parents who must stay away from work to take care of them.

A lot of analyses have already explored the impact of closing schools to reduce influenza transmission, but most of these studies have focused on the very costly approach of nationwide closures. These were regarded as too burdensome by a number of countries during the 2009 pandemic.

Contingent on the economic and social costs that health authorities are willing to afford in relation to disease severity, targeted school closure policies may thus contribute to limit the impact of future influenza pandemics.
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All works published in PLOS Computational Biology are Open Access, which means that all content is immediately and freely available. Use this URL in your coverage to provide readers access to the paper upon publication: http://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1004681

Contact: Laura Fumanelli
Address: Bruno Kessler Foundation
Center for Information Technology
via Sommarive 18
Trento Povo, 38123
ITALY
Email: lfumanelli@fbk.eu

Citation: Fumanelli L, Ajelli M, Merler S, Ferguson NM, Cauchemez S (2016) Model-Based Comprehensive Analysis of School Closure Policies for Mitigating Influenza Epidemics and Pandemics. PLoS Comput Biol 12(1): e1004681. doi:10.1371/journal.pcbi.1004681

Funding: LF, MA, SM received funding from the European Commission Horizon2020 CIMPLEX project. NMF and SC received funding from NIGMS MIDAS. NMF also acknowledges funding from MRC, Bill and Melinda Gates Foundation and NIHR HPRU. SC also acknowledges funding from Labex IBEID, AXA Research Fund and EU FP7 PREDEMICS. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Competing Interests: The authors have declared that no competing interests exist.

About PLOS Computational Biology

PLOS Computational Biology features works of exceptional significance that further our understanding of living systems at all scales through the application of computational methods. All works published in PLOS Computational Biology are Open Access. All content is immediately available and subject only to the condition that the original authorship and source are properly attributed. Copyright is retained. For more information follow @PLOSCompBiol on Twitter or contact ploscompbiol@plos.org.

About PLOS

PLOS is a nonprofit publisher and advocacy organization founded to accelerate progress in science and medicine by leading a transformation in research communication. For more information, visit http://www.plos.org.
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