I have had covid symptoms since Thursday night and my sister who lives with me is negative with no symptoms? How likely is it that she won't have it?

belle_kai
I've tested positive for covid. She tested negative and has no symptoms. Is it possible to not catch it even though you live with someone?

Its day 4 of my symptoms. Should I think she is the lucky one and she would have got it by now. I am worried about her as she has underlying health issues
I have had covid symptoms since Thursday night and my sister who lives with me is negative with no symptoms? How likely is it that she won't have it?
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