Maybe the reinfections are due to false positives the first time... Weren’t there some questionable quality tests floating about at the start ?
Perhaps, yet more severe symptoms this time. It could have been faulty testing earlier as you mentioned, but why resolve symptoms only to have it return with more vengeance? And several globally, the same is happening.
Makes me wonder....SPANISH FLU in 1918-1919 had a 2nd wave and mutated slightly, as viruses do.
Anyone's guess. Still doing the mask mandate and not getting into 1,500+ (heard different reports...between 1,500 - 2K) people shouting. Recipe for death in numerous out there last night.