[QUOTE=qboe2001;2236672]how do the titers work? Is it just a blood test that is performed or is it more invasive?
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A titer is just a regular blood test. The blood has to be sent out and is tested to see if they are still immune. It costs a little bit more than the shot but, to me, it's worth it. If I had my way they wouldn't get rabies every 3 yrs either. Unfortunately, they don't have a titer for rabies............yet.