Dr. Leslie Hayes took every precaution, but she still caught COVID — her thoughts on contagion, masks, the vaccine, and the holidays. — “The virus had gone through 50 people before I got it. Many of them took precautions and then just got unlucky, but some of them were careless or didn’t think the rules applied to them …” Leslie Hayes, M.D., treats patients in Española, New Mexico, a state experiencing one of…