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Systematic selection between age and household structure for models aimed at emerging epidemic predictions

Abstract:
Numerous epidemic models have been developed to capture aspects of human contact patterns, making model selection challenging when they fit (often-scarce) early epidemic data equally well but differ in predictions. Here we consider the invasion of a novel directly transmissible infection and perform an extensive, systematic and transparent comparison of models with explicit age and/or household structure, to determine the accuracy loss in predictions in the absence of interventions when ignoring either or both social components. We conclude that, with heterogeneous and assortative contact patterns relevant to respiratory infections, the model’s age stratification is crucial for accurate predictions. Conversely, the household structure is only needed if transmission is highly concentrated in households, as suggested by an empirical but robust rule of thumb based on household secondary attack rate. This work serves as a template to guide the simplicity/accuracy trade-off in designing models aimed at initial, rapid assessment of potential epidemic severity.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s41467-019-14229-4

Authors


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Role:
Author
ORCID:
0000-0002-1154-8093
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Division:
MSD
Department:
NDM
Sub department:
Big Data Institute
Role:
Author
ORCID:
0000-0003-2399-9657



Publisher:
Nature Research
Journal:
Nature Communications More from this journal
Volume:
11
Issue:
1
Article number:
906
Place of publication:
England
Publication date:
2020-02-14
Acceptance date:
2019-12-20
DOI:
EISSN:
2041-1723
Pmid:
32060265


Language:
English
Keywords:
Pubs id:
1087560
Local pid:
pubs:1087560
Deposit date:
2020-04-07

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