This year's Arisia concrud is norovirus. Spread by food-sharing and contact.
I have never been so happy to
a) have celiac and
b) be too busy to even hug most people.
I have no symptoms of it thus far, and have pretty much committed to cocooning til all y'all are no longer contagious, being as last year's round of norovirus incapacitated me for three weeks. Internet hugs all around.