Of course not.
The issue I have with the article is that it talks about all these people with flu symptoms who don’t test positive for the flu, but offer no answer as to what caused them to have the flu symptoms.
Something just doesn’t sit right about this article.
Probably any number of the thousands of viruses that surround us could cause flu symptoms. They help fine-tune our immune systems.
You ask a good question and this has been covered in other posts by Rappoport. I am going to do a separate post that addresses the broader question that you raise.