COVID returns back blip

I called my mother this morning to see if she needed anything from the store since I was heading down to do some house cleaning. She was still in bed. Very unusual for her. She said she felt bad. I called her  Dr. and they said to test her and they would call back So, I quickly packed a bag and some canned soup and coffee creamer  and headed south. She tested positive immediately. She was really sick and tired and slept most of the day.