Quantifying SARS-CoV-2 Transmission Suggests Epidemic Control with Digital Contact Tracing.¶
Ferretti, L., Wymant, C., Kendall, M., Zhao, L., Nurtay, A., Abeler-Dörner, L., Parker, M., et al. (2020). Quantifying SARS-CoV-2 Transmission Suggests Epidemic Control with Digital Contact Tracing. Science, 368(6491).
Cited by¶
2 citations across 2 artifacts.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Tempo Mismatch
- In disease surveillance a response cycle that lags epidemic doubling time applies containment to a population already past the stage it was designed for.
This sourceSARS-CoV-2 spreads too fast for manual contact tracing to contain; control requires the tracing-and-isolation cycle to be faster than the epidemic's doubling time — a containment cycle lagging the doubling time applies measures to a population already past the targeted stage.
Supported in partVerified against the work's full text
Ferretti et al. show manual tracing's delay (3 days vs a 5-day doubling time) cannot control SARS-CoV-2, but never frame this as containment applied to an already-advanced population.
“It is too slow, and personnel limitations prevent it from being scaled up once the epidemic grows beyond the early phase.”
- In disease surveillance a response cycle that lags epidemic doubling time applies containment to a population already past the stage it was designed for.
Domain-specific¶
- Contact-Tracing Delay
- First, the generation interval is a property of the pathogen-host interaction, not of the public-health system; a pathogen with a short generation time (SARS-CoV-2 at roughly four to five days, with significant pre-symptomatic transmission)
This sourceThe SARS-CoV-2 transmission study estimating a generation time with a median of 5.0 days and a pre-symptomatic share of roughly one-third to one-half.
Supported in partVerified against the work's full text
“The generation time is defined for source-recipient transmission pairs as the time between the infection of the source and the infection of the recipient.”
- First, the generation interval is a property of the pathogen-host interaction, not of the public-health system; a pathogen with a short generation time (SARS-CoV-2 at roughly four to five days, with significant pre-symptomatic transmission)
Verification¶
Does it exist? Confirmed. This work's DOI resolves to a registered record, which fixes its identity. That is all it fixes.
Does it back the claim? Read against the text for 2 of 2 citations: 2 supported in part. Each verdict is shown under its citation below, with what in the work backs the sentence.
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