Particularly in the early months of vaccination, many activities should wait, experts say — and plan to keep your masks. [https://www.nytimes.com/2020/12/21/upshot/after-vaccine-recommendations-experts.html?smid=fb-nytimes&smtyp=cur](https://www.nytimes.com/2020/12/21/upshot/after-vaccine-recommendations-experts.html?smid=fb-nytimes&smtyp=cur)