Re: compromised immune systems, I hear ya. Me and mine get SOMETHING every couple of months. When I was a kid, I almost never got sick. Now, it seems much, much more frequent.
It started when I moved back to Houston, and more specifically when I located to south of I-10. I hate it, and I am seriously considering moving far north of here, and just accepting the commute.
Glad you found your way here!
Any new news on what you alarmingly went through?