Sight. If you see someone yawn you start to yawn, if you see someone smile you may start to smile to even blinking or itching can sometimes be contagious by sight.
This is not a contagious disease.The virus is contagious.
Yes, blinking is a behavior
No, all cold viruses are contagious.
more contagious, most contagious
Is pyorrhea contagious?
Is seborrea contagious?
contagious or not contagious
no it is not contagious
no it is not contagious
its not contagious
No it is not contagious.