Nonsense. Have you ever heard of the innate immune system that is an antigen-independent defense mechanism with no immunological memory? Of Pattern Recognition Receptors (PPRs) to detect and respond rapidly to a virus infection (in minutes not days)?
Nope- never did hear of it. I heard about interferons but I don't recall the details. I will have to check out interferons or maybe you can provide a link to "PPRs" and how they would work against a coronavirus or any virus.
QuoteActually more and more evidence suggest that most asymptomatic people did [develop antibodies] not though the exact proportion remains unknown because of the lack of widespread testing.
OK - so please answer this: if someone has no symptoms and no antibodies, how would anyone know they had been infected? In rare cases, you might catch somebody with a positive RT PCR test who had neither symptoms nor antibodies but a) that would give you no idea of the prevalence of such people in the population and b) would be relative rare and hard to detect. I doubt experiments to examine this issue have been done but I could be wrong. Know of any? Finally, does a person with a positive PCR test, negative antibodies, and no symptoms really "have the disease?" Maybe they are simply carrying the virus around (asymptomatic carrier) as happens in other infections.