[FairOpinion]

A person who gets the shot can unintentionally spread smallpox to others. It can be contagous for about two weeks.

I'll stop you right here. You are a victim of misinformation. The smallpox vaccine does NOT contain the smallpox virus, only a mild virus named vaccinia. This can be harmful to people with compromised immune systems, however, they had done tests and developed 100% effective bandages, that keep the virus in, so as long as you keep the bandage on, you and those around you are perfectly safe.

[powderhorn]

//...only a mild virus named vaccinia. This can be harmful to people with compromised immune systems,...//

OK. I'll consider myself as stopped in my tracks. But I'll still wait a while before getting in line for a shot.