Besides what others have pointed out, there is no benefit of having the flu and we do not really know about long term damage just yet. There has been a report (

Besides what others have pointed out, there is no benefit of having the flu and we do not really know about long term damage just yet. There has been a report (I have only found it in German so far) of 6 divers in Hamburg with irreparable lung damage post corona. While under normal conditions these patients are just fine now, doing any type of sports may become a problem for them and that's only now, they may develop scar tissue in their lungs and what not. Only anecdotal for now but again, there is no benefit from having corona or the flu, so try not to get sick.