I am only a student of ACV but I did find article about HIV and maybe this could relate to what you are saying?
Besides daily enemas where you add garlic and vinegar to the water, the pH of the colon can be lowered by a diet high in fiber and eating certain foods like raw garlic, cabbage and artichokes that support the growth of friendly flora. Friendly intestinal flora produce lactic acid and one strain B. Longum has been found to produce acetic acid, the same kind of acid found in vinegar. Researchers have found that vinegar, like raw garlic, stops HIV replication. [Have] you ever seen a bottle of vinegar spoil? Why, because no virus, fungus or bacteria can survive in it.