Bringing infant to family gathering COVID

In laws invited us over for Memorial Day, I feel uncomfortable going since his sisters family will be there and she has 5 kids who are in daycare/school. One of my friends baby recently got sick from daycare so I get nervous of them getting my baby sick ughhhh what to do. I don’t want to upset anyone but I have to keep her healthy. With Covid numbers going down I think I should be okay but I still get nervous! What would you do?