“…All types of vaccine induce reasonable protection against disease in previously unexposed cats. However, none of the vaccines appears to protect against infection or the development of the carrier state, although both viral shedding and latency load of wild-type virus after viral challenge may be reduced in vaccinated cats compared to unvaccinated controls [28,70,99,100,130,147]. Although intranasal vaccine virus can become latent [147], the situation with parenterally vaccinated cats is still unclear [130].…”