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Making sense of digital contact tracing apps for the next pandemics

In an interview with AlgorithmWatch, Prof. Susan Landau discusses why we need to resist fear in the face of pandemic uncertainty and the normalization of health surveillance technologies — and why the time to have a broad democratic discussion about their future uses is now.

EU switches on cross-border interoperability for first batch of COVID-19 contacts tracing apps

National apps whose backends are now linked through the gateway service are Germany’s Corona-Warn-App, the Republic of Ireland’s COVID tracker, and Italy’s Immuni app.

Coronavirus: EU interoperability gateway goes live

To exploit the full potential of contact tracing and warning apps to break the chain of coronavirus infections across borders and save lives, the Commission, at the invitation by EU Member States, has set up an EU-wide system to ensure interoperability – a so-called ‘gateway'. After a successful pilot phase, the system goes live today with the first wave of national apps now linked through this service: Germany's Corona-Warn-App, Ireland's COVID tracker, and Italy's immuni. Together, these apps have been downloaded by around 30 million people, which corresponds to two-thirds of all app downloads in the EU.

Measurement-based evaluation of Google/Apple Exposure Notification API for proximity detection in a light-rail tram

This paper describes results of a Covid-19 contact tracing app measurement study carried out on a standard design of European commuter tram. The measurements indicate that in the tram there is little correlation between Bluetooth received signal strength and distance between handsets. The paper applies the detection rules used by the Italian, Swiss and German apps to measurement data and also characterised the impact on performance of changes in the parameters used in these detection rules.

この見落とされた変数がパンデミックへの鍵となる

今、どのように後方からのコンタクトトレースを行うかが問題になっています。鍵となるのは会場ベースのトラッキングで、より迅速かつ簡単にリターンを得ることができます。

Google/Apple Exposure Notification APIを用いた軽便路面電車における近接検知のための測定評価

本稿では、ヨーロッパの通勤電車の標準的なデザインで実施されたCovid-19接触追跡アプリの測定研究の結果について説明する。測定の結果、路面電車ではBluetoothの受信信号強度と携帯電話間の距離にはほとんど相関がないことがわかりました。この論文では、イタリア、スイス、ドイツのアプリで使用されている検出ルールを測定データに適用し、また、これらの検出ルールで使用されているパラメータを変更した場合のパフォーマンスへの影響を特徴付けました。

This Overlooked Variable Is the Key to the Pandemic

How to do backward contact tracing is now the question… The key is in the venue-based tracking, which offers quicker and easier returns