I don't understand how a virus can be shed without symptoms. Does the person just leak virus from their pores? Is it in saliva? Viruses by nature have to lyse cells to multiple...that process causes symptoms, ie sore throat. They also initiate fever, cough, vomiting to spread because a person who isn't coughing, sweating, or shedding mucus isn't very contagious. My impression is the myth about it spreading before symptoms to alleviate punishment after the government finds out how mobile sick people actually were...if you can spread it without symptoms then you have no culpability in spreading it.
Like anyone, people vary,their systems vary. While one person could be sick immediately, another may be immune or barely effectd.
In the mean time, they are carriers, and as the virus expands,or multiplies, the count increases in water droplets.
If a person clears their throat, in their hands, then touches another person,by shaking their hand, and that person then eats something right away, its possible to get infected.
All this depends on the virility of the virus of course, those being introduced to it etc. Some virus can exist on certain surfaces longer than others on the same surfaces etc.
The saying, you want to get sick, just go to the hospital is true, mainly because the patients themselves don't clean up like the staff does, and if the patients are mobile,so then too are the germs.
The big thing is the unknowns, they're saying a twp week incubation period, but at what point are others infectious? The cdc doesn't have all these answers, theyve yet to discover the origins of the virus, which can help in defending against it, like, was it a bat that was eaten, or a snake? These are generalities, known histories of how,or how long lasting,or how or who may be infected.
I'm just a layman, and don't want to spread rumors, especially on this virus that currently the cdc itself is somewhat in the dark on.