The jab should just lessen the effect. Trouble is some people show no symptons, and can carry it and wouldn't know, so could have been any one of the 400,000 people you saw the other weekend, or may have just been someone in a local shop.
Thing is, we cant keep hiding forever to avoid it.
I had it for about 4 days over Christmas, covid tested for them 4 days and was negative, the covid test showed positive when I was feeling better on the 4th day.
Will Bruce let you have time off work? or does he want you to go in?