Persistence in epidemic metapopulations: quantifying the rescue effects for measles, mumps, rubella and whooping cough

Metcalf, C.J.E., Hampson, K. , Tatem, A.J., Grenfell, B.T. and Bjørnstad, O.N. (2013) Persistence in epidemic metapopulations: quantifying the rescue effects for measles, mumps, rubella and whooping cough. PLoS ONE, 8(9), e74696. (doi:10.1371/journal.pone.0074696) (PMID:24040325) (PMCID:PMC3767637)

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Publisher's URL: http://dx.doi.org/10.1371/journal.pone.0074696

Abstract

Metapopulation rescue effects are thought to be key to the persistence of many acute immunizing infections. Yet the enhancement of persistence through spatial coupling has not been previously quantified. Here we estimate the metapopulation rescue effects for four childhood infections using global WHO reported incidence data by comparing persistence on island countries vs all other countries, while controlling for key variables such as vaccine cover, birth rates and economic development. The relative risk of extinction on islands is significantly higher, and approximately double the risk of extinction in mainland countries. Furthermore, as may be expected, infections with longer infectious periods tend to have the strongest metapopulation rescue effects. Our results quantitate the notion that demography and local community size controls disease persistence.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Hampson, Dr Katie
Authors: Metcalf, C.J.E., Hampson, K., Tatem, A.J., Grenfell, B.T., and Bjørnstad, O.N.
College/School:College of Medical Veterinary and Life Sciences > Institute of Biodiversity Animal Health and Comparative Medicine
Journal Name:PLoS ONE
Publisher:Public Library of Science
ISSN:1932-6203
Copyright Holders:Copyright © 2013 The Authors
First Published:First published in PLoS ONE 8(9):e74696
Publisher Policy:Reproduced under a Creative Commons License

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