I've heard this from the same places I usually hear conspiracy theories which is to say: I don't think this is untrue but it definitely isn't validated or verif

I've heard this from the same places I usually hear conspiracy theories which is to say: I don't think this is untrue but it definitely isn't validated or verified. Heretics wouldn't be allowed in epidemiological circles, which is why epidemiologists wouldn't be quick to spout this off, but the question still begs: what would a time bound have to do with a virus? And is there a proper comparative a/b case (perhaps in a similar country) to look at? And are there other viruses that behave this way? Even shorter: Why would this virus be different than any virus before it? If it were created in a lab, which some intelligence agencies (and other conspiracy theorists) believe, could that account for it? Then why? I'm unconvinced largely by the conspiracy theory, but I also don't necessarily think it's been convincingly proven false.