Contact network structure explains the changing epidemiology of pertussis |
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| Authors: | Rohani Pejman Zhong Xue King Aaron A |
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| Institution: | Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA. rohani@umich.edu |
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| Abstract: | The epidemiology of whooping cough (pertussis) remains enigmatic. A leading cause of infant mortality globally, its resurgence in several developed nations--despite the availability and use of vaccines for many decades--has caused alarm. We combined data from a singular natural experiment and a detailed contact network study to show that age-specific contact patterns alone can explain shifts in prevalence and age-stratified incidence in the vaccine era. The practical implications of our results are notable: Ignoring age-structured contacts is likely to result in misinterpretation of epidemiological data and potentially costly policy missteps. |
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