For some reference, I live in Westchester:
- Most of our Yeshivas (WDS, WTA, Lefell, Carmel, SAR) are now closed and operating virtually for at least the next week. (Some were already closed last week as well)
- Several Shuls in the Area - 1 in NR, 1 in Scarsdale, and 2 in White Plains (1 Orthodox, 1 conservative) have canceled davening for purim.
- I know for a fact that the NR shul has several confirmed cases, and the two White Plains shuls are sharing space while the orthodox shul is under construction, and there is at least one confirmed case. The scarsdale shul has enough overlap with NR/WP that there is likely to be a confirmed case already if not soon.
- AFAIK, all of those shuls are livestreaming megilla tonight and tomorrow
- The remaining shul in White Plains is also livestreaming the megilla, and is expecting to lain megilla outdoors in its parking lot. They have also recommended that people in High-risk situations not come to shul.
I was out of the country for a wedding in E"Y last week, my shabbos host had to ask about permission for me to attend davening on shabbos as the vaad of his shul prohibited visitors from outside Israel and anyone who'd been overseas from coming to shul. The Rav of that shul was not only adamant about hand-washing, but he also stood by the door and asked everyone walking in the door to purell their hands as he wished them good shabbos.