>>11680721There is no built in immunity for hiv, at all. There is something called superinfection, suppose you suppressed the virus to the level of undetectable by the test with medication, by fucking wrong op in the butt you could get a new strain, more reaistant that will override the old one and make feel bad you a gain (tm). Related to HIV. This makes it really a challenge.
Other viruses have other characteristics which come into play. Flu mutates like crazy. Thats why they recommend vaccine erry yr. Because it is different, even at various places at the same time.
Covid does not have that many strains as far as one knows but i do not know rest of the details so we will see.
