Social contact networks for the spread of pandemic influenza in children and teenagers

Journal Article · Wed Feb 13 23:00:00 EST 2008 · BMC Public Health (Online)

DOI:https://doi.org/10.1186/1471-2458-8-61· OSTI ID:1626536

Glass, Laura M. ^[1]; Glass, Robert J. ^[2]

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1. Albuquerque Public Schools, Albuquerque, NM (United States); DOE/OSTI
2. National Infrastructure simulation and Analysis Center (NISAC); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Background: Influenza is a viral infection that primarily spreads via fluid droplets from an infected person's coughs and sneezes to others nearby. Social contact networks and the way people interact within them are thus important to its spread. We developed a method to characterize the social contact network for the potential transmission of influenza and then applied the method to school aged children and teenagers. Methods: Surveys were administered to students in an elementary, middle and high-school in the United States. The social contact network of a person was conceptualized as a set of groups to which they belong (e.g., households, classes, clubs) each composed of a sub-network of primary links representing the individuals within each group that they contact. The size of the group, number of primary links, time spent in the group, and level of contact along each primary link (near, talking, touching, or kissing) were characterized. Public activities done by groups venturing into the community where random contacts occur (e.g., friends viewing a movie) also were characterized. Results: Students, groups and public activities were highly heterogeneous. Groups with high potential for the transmission of influenza were households, school classes, friends, and sports; households decreased and friends and sports increased in importance with grade level. Individual public activity events (such as dances) were also important but lost their importance when averaged over time. Random contacts, primarily in school passing periods, were numerous but had much lower transmission potential compared to those with primary links within groups. Students are highly assortative, interacting mainly within age class. A small number of individual students are identified as likely "super-spreaders". Conclusion: High-school students may form the local transmission backbone of the next pandemic. Closing schools and keeping students at home during a pandemic would remove the transmission potential within these ages and could be effective at thwarting its spread within a community. Social contact networks characterized as groups and public activities with the time, level of contact and primary links within each, yields a comprehensive view, which if extended to all ages, would allow design of effective community containment for pandemic influenza.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
• Grant/Contract Number: AC04-94AL85000
• OSTI ID: 1626536
• Journal Information: BMC Public Health (Online), Journal Name: BMC Public Health (Online) Journal Issue: 1 Vol. 8; ISSN 1471-2458
• Publisher: BioMed Central
• Country of Publication: United States
• Language: English

Related Subjects

60 APPLIED LIFE SCIENCES
Public
environmental & occupational health
critical group
influenza
pandemic influenza
public activity
school aged child