JCT69
New User
Just wondering, is it possible to have Vaccinations with the same batch number but with expiry dates over a year apart? Very confused at my horse's vaccination record on his passport. The first vaccine has an expiry date of April 2016 (administered in April 2016) and the second one done a month later, with the same batch number as the first, with an expiry date of July 2017. Anyone have any explanation?