Pleas pardon my Iignorance if this has been asked but I didn't find anything doing a search. A question about vaccinations popped in to my head so I figured this is the place to ask. Has there ever been any documented studies regarding the use of live versus dead vaccinations with bullies due to some that have varying degrees of adverse reactions to the injections? I know in the cat world my 3 Bengals have to get the dead version because the live will kill them but didn't know if any kind of study had been done with bullies.