Hello!

So my friend is having a small hang out at her house before she leaves for college. The problem is that there is this one girl who went to Florida recently (Last week of July) and she had an emergency visit at the ER for her mom. She said it was a Covid scare but she might have pneumonia, but she was being vague about it. I told my friend who is hosting the party about this and she said invite her anyways and we will see from where we go from here. So I send out the invite. Later my dad came home and I told him about the incident. He stopped from looking at his iPad and deadass stared at me and said pneumonia is linked to Covid. So I go research this and get worried. How do I uninvite someone to a small gathering?