Actually we were talking about who is or isn't spreading it. Your claim was that the experimental treatment slows the spread, there is no way to prove that. None of those studies prove that. As to efficacy there is no comparison for vaxxed to asymptomatic with natural immunity. CDC has almost completely ignored natural immunity.Of course I read it and it represent exactly what you asked about… vaccine efficacy. What’s wrong with you? it isn’t difficult to understand.