Stop in for a cup of coffee

Mom is 94 and at a nice senior living center. A couple days ago one of the nursing staff was diagnosed with Covid. Well today another one was diagnosed. My sister is going to bring Mom to her house. Hope that all works ok. My sis has had cancer and had bronchitis a lot. Uses a cpap and nebulizer a lot. Her hubby has smoked 3 packs for 50+years and is on o2. I hope to heck they don't get it.