There are people carrying the virus that are unaffected by it. That's the troubling thing. So I will just gamble online for a while 
I think it is called asymptomatic.
Those people without any symptoms of the virus but have the virus are asymptomatic and they are the ones with high immunity when it comes to those kinds of diseases. This is a problem to health workers as they can't really identify these people but there are also some that say these asymptomatics are also affected by the virus like losing their sense of smell. This is the reason why we should not get out that easily or normally or even think of gambling in a casino since our enemy has no face and unseen while killing many people globally.