There are a lot of research papers, unfortunately the real problem is these studies are not disseminated / meta-studied nearly well enough, let alone use the current covid infrastructure to collect more reliable data on asymptotic transfer.
they revised the asymptotic transfer from 80% as initially reported to under 20%
asymptotic people are 3-25 times less likely to pass infection than symptomatic people
that people with SARS-CoV-2 can become infectious one to two days before the onset of symptoms and continue to be infectious up to seven days thereafter; viable virus is relatively short lived.
49% of people who are defined as asymptotic carriers actually went on to develop symptoms
The real question is, what is the proof that there was asymptotic transfer in the first place. As far as I remember it was just Chinese reporting that WHO decided to accept as factual and used for all their recommendations.
There are a lot of research papers, unfortunately the real problem is these studies are not disseminated / meta-studied nearly well enough, let alone use the current covid infrastructure to collect more reliable data on asymptotic transfer.
Take a look at the abstract of this paper: https://www.bmj.com/content/371/bmj.m4851
It has references to studies that show:
they revised the asymptotic transfer from 80% as initially reported to under 20%
asymptotic people are 3-25 times less likely to pass infection than symptomatic people
that people with SARS-CoV-2 can become infectious one to two days before the onset of symptoms and continue to be infectious up to seven days thereafter; viable virus is relatively short lived.
49% of people who are defined as asymptotic carriers actually went on to develop symptoms
The real question is, what is the proof that there was asymptotic transfer in the first place. As far as I remember it was just Chinese reporting that WHO decided to accept as factual and used for all their recommendations.