I remember in February (I think) when the apparent first case of corona came to the UK, and there was much talk of a "superspreader".
However, I am convinced that if the virus has been evident in China since November, then it would have arrived here much sooner.
Personally, I was horrendously ill in late January. Everyone told me that I had a bad cold, but it was honestly the worst cold I have ever had in my entire life. I kept having hot and cold flushes and I had an awful cough. I couldn't get out of bed for a week. I'm not saying that I had corona, but I had something awful.