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My wife and I just came home from vacation, and after 4½ years of avoiding it, we have COVID.
(lemmy.world)
We social distance, usually wear masks in public, and stay up to date on our vaccinations. But all it took was one lady with a mean cough on a two hour flight a week ago to ruin that...or so we think.
The timing really sucks. I had plans for my weekend.
Unfortunately masks are most effective when the person with COVID wears them, rather than people who are trying to avoid COVID, but human nature is such that people with COVID (ones who go out in public) are often ones least worried about it so least likely to wear a mask in the first place.
I had a similar experience where I went to a conference and masked up religiously around groups only to catch it anyway while my colleagues didn't mask and didn't catch it.
Sometimes you can do everything right and still fail (paraphrasing Picard).
A properly fitted n95 mask is very effective at preventing infection.
Simply masking around groups though isn't enough as it can linger in the air. The amount of effort to actually wear the mask everywhere you'd need to is pretty high and one slip up is all it takes. It comes down to trade offs at that point of how often you wear it.