And even if you are extremely careful, Covid can still strike! These latest variants create super-duper contagion.
In my office, we are very, very careful with high-quality mask use and social distancing, and four of us (myself included) were infected over the course of two weeks recently. Ages around 27, around 30, around 65, and myself at 73. That’s out of fewer than 15 people total who work in the office instead of remotely.
Editing to add: I am still/again trying my best to be careful, post-Covid infection. Once was enough! Although I won’t beat up on myself if I get it again. All we can do is increase the chance that we won’t get sick.