Okay, so far, so good and we've arranged for a makeshift safe zone for dad to stay in and mum to avoid .... if only he wouldn't secretly break their rules. which we've taken into calculations. The problem is, he seems to be asymptomatic because of all the medicine he's already taking for his heart and diabetes - as I understand people like that show no symptoms, they just go at some point. I need to find a way to monitor his blood oxygen. I wonder if Samsung Health is at all reliable, or even just a little bit indicative? Geez, if only doctors had cars and would be able to visit their quarantined patients at their homes to measure these magical bodily functions, eh? 

Do those fancy sports watches you get with fancy phones work like that? Measure O2? they should. I am fairly certain we have one of those somewhere... around here ...