Howdy yall, I haven't been able to visit this board because my computer and isp have both been causing me grief, but I made it online today. My question is: I purchased a bottle of CD/T vaccine and gave my 4 pregnant does their annual injections of 2cc each (also my 2 bucks). I gave the shots about 3-4 weeks prior to due dates. Then i noticed that the bottle said "must be used up immediately" or something like that. I used to be a practicing RN and know that some things DO HAVE TO BE THROWN OUT, but that sometimes you can get away with keeping something a bit longer if sterile techneique and refrigeration are used. I would like to not have to invest in another vial of CD/T vaccine when the kids come (also, this was one of my does 1st injection ever as she came from someone who didn't give shots). Should I throw out this fairly new bottle and by a new one so soon again just to be safe. Money is an issue for me but I don't want to give an injection that has lost it's p[otency or has become contaminated. I sure hope i can get back online to read yalls responses! BTW all four of my does are heavy pregnant and doing well, due end of March and 1st week of April...about a three week spread.