Strategies for COVID-19 Presence Tracing

Tuesday, September 28, 2021

SPT - 2021 Sept Video v2


Contact tracing in many countries initially focused on those in close proximity to someone infectious for COVID-19, and Bluetooth-based protocols for automated exposure notification followed suit. But because COVID-19 is also spread via aerosols, contacts at the other side of a room are also at substantial risk of infection, especially in poorly ventilated venues and with more infectious strains. QR code scans or Bluetooth beacons can be used to match those who were present at the same venue at the same time as an infectious person. This panel will explore different designs for presence tracing protocols, and the rationales behind them.


Co-hosted with The Big Data Institute at
The University of Oxford

Meet the Speakers

merrin macleod headshot

Merrin MacLeod

Merrin MacLeod is a project lead for the exposure notification app used by New Zealand.

vincent roca wehealth headshot

Vincent Roca

After a PhD from Grenoble INP in 1996, Vincent Roca joined the University Paris 6 as Associate Professor in 1997, and Inria as a researcher in 2000.... Read more

Justus Benzler

Justus Benzler

Justus is a medical epidemiologist at the Robert Koch Institute (RKI) in Berlin, Germany. After several years of clinical practice in obstetrics... Read more


Edouard Bugnion

Edouard Bugnion joined EPFL in 2012, where his focus is on datacenter systems. His areas of interest include operating systems, datacenter... Read more

james petrie - 140

James Petrie

James Petrie designed the decentralized Bluetooth protocol initially used by Covid Watch (which he co-founded), and contributed to the design... Read more


Coordinating Committee Co-Chairs

Joanna Masel, PhD

Professor of Ecology & Evolutionary Biology at The University of Arizona

Luca Ferretti, PhD

Senior Researcher in Statistical Genetics and Pathogen DynamicsBig Data Institute, The University of Oxford

Webinars On-Demand

Watch recordings of past events, anytime. Contributors include leading experts in exposure science, epidemiology, virology, public health, infectious disease, privacy, cybersecurity, and more.

“Last week’s event was awesome! There were 5 from my department that attended as well, they also wrote to say how much they enjoyed the debate."

Get the Newsletter

Join future events and get the latest WeHealth news and insights.