Both my wife and I have had the latest Moderna boosters, also influenza and RSV vaccines.
There has been more information on long Covid of late. The first is the drop in serotonin levels in long Covid patients. This explains most of the mood and fatigue symptoms. In addition there is dysfunction of the vagus nerve that can be associated with this. This correlates with the observed cardiac autonomic nervous system problems. The Vagus nerve is the principle brake on cardiac rate and so this sheds a lot of light on the tachycardia issues.
In addition there are now reports of persistence of the Covid virus in some long Covid patients.
The other issue in a report today, is looking at the mortality difference at 30 days, of individuals hospitalized with influenza versus Covid.
Death rate for Covid is 5.97% at 30 days versus 3.75% for influenza, so an excess mortality rate for Covid of 2.23%.
So Covid remains a significant problem. People can not claim that Covid is no worse than influenza, as it clearly is from a large group of patients studied.