Remember the goal of the Data Donation Project? When we conceived and launched the project about three months ago we thought that we could use the daily donations of resting heart rate and daily step count to detect the onset of fever in donors which in turn would help us quantify changes in the dynamics of the COVID-19 pandemic because fever is a symptom of the infection. Details of the underlying scientific idea were discussed in the blog post How does it work?.
In addition to the daily average resting heart rate, we can obtain the daily step count from connected wearable fitness devices. Together with the resting heart rate, the step count is an important parameter for this study. As you can read in our post, The Pulse of the Nation, deviations from the average resting heart rate could indicate fever. However, resting heart rate may also deviate for various unrelated reasons.