All vaccines cause an immune response. That's how vaccines work. They are not drugs; they're biologics. That immune response can cause an OVERreaction in someone who is already sick. That's why it says on the label "for healthy animals".
Personally, I don't think it was the particular brand of vaccine that caused the issue. I think it was an immune system overreaction to the immune challenge presented by the vaccine, because she had an underlying health problem. That would likely have happened with any vaccine.
Personally, I don't think it was the particular brand of vaccine that caused the issue. I think it was an immune system overreaction to the immune challenge presented by the vaccine, because she had an underlying health problem. That would likely have happened with any vaccine.