I work with quite a few nurses who have not had it yet. I myself didn’t have it (despite working in a Covid ICU and regularly caring for infected patients) until my DS brought it home work this past October. He thought he had seasonal allergies from being out on the golf course. (Should’ve insisted he test then!) Came home super sick two days later and tested highly positive right away. By that time, we were all infected at home

(two of us likely from drives in the car with him) and all started testing positive over the next few days. My case was fairly mild, but I got a rebound case after taking paxlovid, and was really sick the second time around.
We were at Disney over Christmas and I was worried we’d get it, from reports here of people coming home sick, but we didn’t, thankfully - and this despite someone coughing in front of us the whole flight home. (We did wear masks.)
I think DS had it in Nov/Dec 2019. He had all the symptoms, even loss of smell and taste, and kept going to the doctor’s but they kept saying he just had a virus. Wound up hospitalized with kidney failure


and chest XRay showed a previously unknown pneumonia (among other problems). We might’ve all had it then and not known (hence some immunity).
With home testing today, sometimes it takes several tests to get a positive. One and done often isn’t enough if it’s early in the course of the illness. If symptomatic, it’s a kindness to isolate, or at least wear a mask or TRY to cover your mouth when coughing and sneezing. I saw so many people just coughing and sneezing without covering their mouths down at Disney, it was really disheartening. I’d think we would’ve learned something from all of this.
I know it’s hard to miss work and school, but it seems like consequences for that are relaxed a bit when it comes to illness. (Maybe not in some places - what are your experiences?)
I know quite a few people who never had Covid before who picked it up this fall, also. Some of the newer variants are super contagious, but fortunately, don’t really cause severe illness.