So my sister and her partner and their 1-year-old have been having a cold on and off for over a month, and just Sunday the little girl was sick a lot of times. They put it down to eating a bit of chocolate, but then on Wednesday my sister was sick at work about 4 times, but for some reason didn't go home. My first aunt went to stay over there Wednesday night to be there on Thursday to look after the baby while the parents were at work, even though they were both ill and didn't go to work on Thursday. On Wednesday night while my aunt was there, my sister's partner was then sick, along with fever and aches. So obviously there's some sort of bug going around there, although they've had colds for a while now too. It seems to be quite catching. My first aunt did pick up a cold from them a couple of weeks ago.
Anyway I'm worried my first aunt will catch whatever they've had, because I am invited to my second aunt's for dinner on Sunday but she is seeing my first aunt on Saturday and she might be harbouring the bug. Then my second aunt could then harbour it from her and give it to us on Sunday when we have dinner. If it's norovirus then it spreads like wildfire. I have had a bad experience with norovirus and am left terrified of it. But someone said it sounds like covid, and now I'm terrified of catching covid in case vomiting has become a symptom of it and it means I'll vomit, as my sister and her partner and baby were all vomiting.
I have severe Emetophobia and can't stand vomiting. I didn't know vomiting was now a symptom of covid? Please someone reassure or provide me with some answers. 