I appreciate the reply Marty,
From what my guidebook says (lonely planet)
"At most Brazilian borders and major airports there are vaccination posts where you can have the jab (free for foreigners) and get the certificate immediately."
I am not too worried about actually contracting the disease (should I be?), and really only want the certification to get into the country. If I can save $170 I can add at least 4 days to my trip, and I am running on a relatively tight budget here, so when I am out of money I've got to be back.
Marty, how much did your shot cost down there in South Carolina. My parents live in Columbia, and they are my first stop on my trip. If you know of a place that might be more reasonably priced, I would appreciate it.
Also Marty, did you go to Brasil? If so, did you notice any stations for injections like the guide book is talking about at borders? Were you asked for the certificate, or is it one of those things they say they require, but in practice dont really check up on?
thanks for your help,