Interesting.

I've had COVID twice (March 2020 and April 2021)—it's not fun, especially during a move—and had the disease show up unremarkably in my daily and monthly readings at those times.

If I may ask, what form does it seem to take in your charts?

My answer was that I wouldn't get a chart like that: at the very least, my first house would have Rubeus "seeing red" in it!

Well, ironically, that might be a telltale that you could trust the chart, then!