Comment by commandlinefan

What I can't seem to figure out (and the knee-jerk censorship of any discussion on the topic isn't helping...) is whether or not this is unusual, as vaccines go. Although I never thought much about it before, it seems like no vaccine could possibly be 100% safe, so, say the smallpox vaccine must produce occasional side effects. How does this vaccine compare with all the other ones? Smallpox will almost definitely kill you, so a small chance of a side effect is worth it. What is the real cost/benefit of getting this particular vaccine?