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VOICE ARCHIVE

@christophraser

@christophraser
6 posts
2021-05-14
Now peer-reviewed in Nature, “The Epidemiological impact of the NHS COVID-19 App”. Here's a quick rundown of results & what they mean. We estimated that the app prevented several hundred thousand cases from arising. The app works. https://www.nature.com/... 1/n https://twitter.com/...
2021-05-14 View on X
BBC

A peer-reviewed study finds UK's NHS contact-tracing app reduced the second wave by roughly 25%, averting ~594,000 out of 1.89M cases from October-December 2020

The NHS contact-tracing app had a significant impact on lowering the spread of the coronavirus in the UK, a peer-reviewed paper has found.

View original
So in summary, the app has similar accuracy to manual recall of contacts, but is reaching more contacts per person. Of course, manual tracing has broader reach: both approaches have pros and cons, you need both; but it's useful to see them side by side. 6/n https://twitter.com/...
2021-05-14 View on X
BBC

A peer-reviewed study finds UK's NHS contact-tracing app reduced the second wave by roughly 25%, averting ~594,000 out of 1.89M cases from October-December 2020

The NHS contact-tracing app had a significant impact on lowering the spread of the coronavirus in the UK, a peer-reviewed paper has found.

View original
We used the number of exposure notifications, the secondary attack rate, and the adherence to self-isolation to model the projected number of cases averted from Oct to Dec. This came out as 284,000 (108,000-450,000) cases averted, over a baseline of 1.89 million. 7/n
2021-05-14 View on X
BBC

A peer-reviewed study finds UK's NHS contact-tracing app reduced the second wave by roughly 25%, averting ~594,000 out of 1.89M cases from October-December 2020

The NHS contact-tracing app had a significant impact on lowering the spread of the coronavirus in the UK, a peer-reviewed paper has found.

View original
Using this approach, we estimated that the app averted 594,000 cases out of 1.89 million cases that actually took place. In other words, contact tracing with the app reduced the second wave of COVID by a quarter. 14/n
2021-05-14 View on X
BBC

A peer-reviewed study finds UK's NHS contact-tracing app reduced the second wave by roughly 25%, averting ~594,000 out of 1.89M cases from October-December 2020

The NHS contact-tracing app had a significant impact on lowering the spread of the coronavirus in the UK, a peer-reviewed paper has found.

View original
We evaluated the app during the three months after its launch in England & Wales, Oct through December 2020. During this time, the app was actively used by 16.5 million people, 28% of the total population (map a users, map b, cases). 2/n https://twitter.com/...
2021-05-14 View on X
BBC

A peer-reviewed study finds UK's NHS contact-tracing app reduced the second wave by roughly 25%, averting ~594,000 out of 1.89M cases from October-December 2020

The NHS contact-tracing app had a significant impact on lowering the spread of the coronavirus in the UK, a peer-reviewed paper has found.

View original
During that time period, 560,000 app users tested positive for COVID. This resulted in 1.7 million app users being contact-traced by the app. At an individual level, 4.4 contacts were notified per positive user who consented to have their contacts traced ('sharing keys'). 3/n https://twitter.com/...
2021-05-14 View on X
BBC

A peer-reviewed study finds UK's NHS contact-tracing app reduced the second wave by roughly 25%, averting ~594,000 out of 1.89M cases from October-December 2020

The NHS contact-tracing app had a significant impact on lowering the spread of the coronavirus in the UK, a peer-reviewed paper has found.

View original