I thought there would be a lot more talk of this
There's a lot of talk about "even if you're vaccinated you can have a high viral load", but what is the effect of that?
If you have no symptoms:
- you're not coughing aerosols into the air
- you're probably only going to have a high viral load for a short time, if your immune system is on-track for killing off the virus particles
If these weren't typical mitigating factors, I can't see how herd immunity could work for any virushttps://www.nature.com/articles/d41586-020-03141-3
Byambasuren’s review also found that asymptomatic individuals were 42%
less likely to transmit the virus than symptomatic people.
As part of a large population study in Geneva, Switzerland, researchers
modelled viral spread among people living together. In a manuscript
posted on medRxiv this month2
they report that the risk of an asymptomatic person passing the virus
to others in their home is about one-quarter of the risk of transmission
from a symptomatic person.
I'm guessing that the home environment is a more realistic model - probably asymptomatic people modify their contacts outside their homes
Is 25% as infectious realistic?