Here is the study: https://www.bmj.com/content/356/bmj.i6583
The study is a tough read, so here is a video explaining the results: https://www.youtube.com/watch?v=W5yVGmfivAk
Since coronavirus is a respiratory illness, this could be a tool in slowing it's spread. Especially since most people get their D from UV light, which is in short supply in northern regions right now.
In our network, 3.6% of all user sessions are coming from data centers. Of that, this is how it breaks down for the top ones:
Amazon.com 6,466 (15.81%)
Microsoft Azure 5,827 (14.25%)
Google Cloud 3,322 (8.12%)
Google 2,397 (5.86%)
OVH SAS 1,721 (4.21%)
TOPNET 1,665 (4.07%)
OVH Hosting 1,635 (4.00%)
Digital Ocean 1,271 (3.11%)
Hetzner Online GmbH 992 (2.43%)
Rackspace Ltd. 932 (2.28%)
Linode 809 (1.98%)
ns-a1.io timesout on every request so do all the others