Our family was exposed on Christmas. My ILs went to a different holiday party or gathering on every day leading up to Christmas, even though warned to take precautions. We saw them earlier last week, before all of their parties. On Christmas Day, FIL woke up with a “cold” and not feeling well. They were advised by us and other family to stay home and test. They did not because they “knew” it was not Covid (eye roll) and didn’t want to miss out on Christmas. They came to the gathering at SIL’s house but some other family members, including us, opted not to attend. There were some not-so-nice words expressed for those who decided not to attend. FIL was full-blown sick the next day, waited 3 hours for a test, and was positive. So was MIL but she was asymptomatic (although her symptoms started the next day). Turns out all 8 attendees at one party got Covid and multiple family members at another party they attended on Xmas Eve tested positive. Now the rest of the family is on pins and needles due to the exposure. We tested ourselves and are negative (but we think they became infectious after they saw us). ILs are vaccinated but not boosted. Just a very disappointing situation all around.