Rambling (ranting, more accurately) about this here as I have no other place. Feel free to ignore.
At the very end of this past work week, with two hours to go in my day, we were informed that a coworker tested positive and that all of us working had been exposed. We had the choice of taking leave for a short time, getting tested ASAP and taking leave until negative results come in, or working regardless with KN95 masks. We all work on top of each other and no one has been feeling great, so almost everyone decided to take leave until we test negative.
Shockingly, It turns out that we need employees to run, and it’s hitting the fan not even one full day into this. I got tested this AM, but am getting pressured to go back early. I’m just angry because we’ve never been appreciated, and we can’t even make sure we are COVID negative before going back to work. I’m taking my first vacation time next week to see my elderly stepmother next week, and I’m not interested in bringing her COVID, despite us both being vaccinated.
I don’t know what to do.
I would look at it this way:
1. We know vaxxed get/spread it - at least more than rarely.
2. We know the longer/higher the exposure, the more likely a vulnerable person is to get it.
3. We know that masks can make a difference - if they are worn properly (fit well, aren't touched with hands contaminated by the virus).
4. We know the difference they make wanes over time if in an enclosed environment with high levels of virus in the air.
5. We know the covid tests have very high rates of false negatives, especially early in the course of illness.
6. We know that in a pretty high majority of covid cases that have symptoms, the symptoms are detected within 5 days of the exposure; in the vast majority, the symptoms are detected within 7 days; in virtually all that have symptoms, the symptoms are detected within 9 days.
So, if I wanted to keep the visit plans. I would isolate for 5 to 7 days -depending on whether I wanted to take pretty sure level of precaution or abundance of caution
If I wanted to work instead (regardless of reason; several reasons ate likely to apply), then I would not keep the visit plans - I would count days from possible/likely exposure rather than the known exposure. The coworker you know about is likely to have given it to at least some of the people working that in close of procsimity over that timeframe unless you are outside on a windy day. The person/people who got it from that coworker need to be counted to - timing from before they know they have it.
If I went to work in the case you described, I'd wear the mask because it was required. Not because it is going protect either you or your coworkers given the time/degree of exposure. It might add some protection to/from other coworkers if there are other coworkers who are exposed briefly or less intensely.
If I were going to visit my stepmother even if I couldn't isolate as long as I thought needed for the degree of protection needed then I would apply some or more of the other things that make a difference - some or all of: visit outdoors or if indoors then in a larger space and/or space with better airflow, stay further apart, keep visit shorter, were better fitting mask, take anaphylactic.