Can't speak for coronovirus per se, but I'm surely not the only person on the planet who's been aware of the big increase in cough/chest/respiratory 'viruses', usually hitting over the winter period, during the last 2 or 3 years?
Nearly all friends and relatives have succumbed to a few bouts of said 'viruses', all similar but with varying degrees of 'symptoms'.
I picked one up less than two weeks after my last major chemo session in October last year.
Cough, cough, cough, cough, cough, cough, cough, cough, cough..... slight shortness of breath, not significant, but didn't have a temperature as far as I recall.
Felt rough as a badger's bum for a week then slowly got better.
Took about 4-5 weeks before I felt normal-ish again and haven't picked up anything else since - fingers crossed!
Look at Tezza and Maggy - they've been suffering for months from nasty chest/cough infections that they can't seem to get rid of with all their van plans on hold as a result.
I have a very good friend who picked up a coughing virus last November and is still suffering now - very badly the last month as it has turned into something called 'laryngospasm' and her lungs are all inflamed as a result. She's now on steroids, inhalers and gawd knows what from the doc, unable to work as sleeping most of the time - which is NOT her, she's an extreme workaholic so to say she's cheesed off is an understatement.
And that's not counting nearly everybody else I know succumbing to similar 'viruses' the length and breadth.
Are these circulating viruses all related to each other and possibly to the new and nastier 'morphed' coronovirus?
I'm no medical expert, but something is not right ....