Love them horse wormers.
Nothing new here. The flu comes in a new variety every year. There is no one flu vaccine. They have to more or less guess in advance which vaccine will work on the upcoming year's variant. Sometimes they're right, but sometimes they're wrong and every one gets it anyway. (for you English majors, note that I said 'they are, contracted to they're, not their or there).
I see no reason why Ivermectin should not work on several versions of the flue. They all have one thing in common and that is they are covids. So really, it appears that ivermectin during the flue season and everyone would be covered. INstead we give big Pharma billions to create another vaccine when for a few dollars we already have a prophylactic to cover viruses.
kwg