Estimating the human bottleneck for contact tracing.

Publication date: Jul 01, 2024

The SARS-CoV-2 pandemic has highlighted the importance of contact tracing for epidemiological mitigation. Contact tracing interviews (CTIs) typically rely on episodic memory, which is prone to decline over time. Here, we provide a quantitative estimate of reporting decline for age- and gender-representative samples from the United Kingdom and Germany, emulating >15,000 CTIs. We find that the number of reported contacts declines as a power function of recall delay and is significantly higher for younger subjects and for those who used memory aids, such as a scheduler. We further find that these factors interact with delay: Older subjects and those who made no use of memory aids have steeper decline functions. These findings can inform epidemiological modeling and policies in the context of infectious diseases.

Concepts Keywords
Epidemiological contact tracing
Germany forgetting
Interviews memory
Steeper under-reporting

Semantics

Type Source Name
disease IDO contact tracing
disease VO time
disease MESH aids
disease MESH infectious diseases

Original Article

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