Construct · 1 fields · 1 citations

superspreading: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a single construct in epidemiology Nearest construct by meaning·not indexed
superspreading1 CONSTRUCTSuperspreadingLLOYD-SMITH · SUPERSPREAD

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Epidemiology

A few individuals drive most transmission

Superspreading is the pattern in which a small minority of infected individuals or events accounts for a disproportionately large share of onward transmission, so that most infected people infect few or none while a few infect many. It reflects variation in how many secondary cases each case produces, captured by the dispersion of the offspring distribution rather than by its average alone, and it makes outbreaks more explosive but also easier to cut off by targeting the heavy tail. Lloyd-Smith and colleagues' 2005 Superspreading and the effect of individual variation on disease emergence formalised this with an overdispersed model. The referent is heterogeneity in individual transmission, not an average rate.[1]

Unit
The spread (dispersion) of secondary cases across infected individuals
Recovery means
Not applicable
Measured by
Quantified by fitting an overdispersed offspring distribution to contact-tracing data and estimating its dispersion parameter

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Nearby constructs

reproduction number3 fields · 4 citationsinvariant · one construct, three systemscase2 fields · 3 citationsjingle · one word, two constructsdispersion4 fields · 6 citationsjingle · one word, four constructs

References

  1. Lloyd-Smith, J. O., Schreiber, S. J., Kopp, P. E., & Getz, W. M. (2005). Superspreading and the effect of individual variation on disease emergence. Nature, 438(7066), 355–359. https://doi.org/10.1038/nature04153

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