FCV is a highly infectious pathogen of cats
In addition , in recent years , virulent , systemic FCV ( vs - FCV ) strains <*> have been reported in cats .
FCV is a highly infectious pathogen of cats and typically causes moderate , self - limiting acute oral and upper respiratory tract diseases or chronic oral diseases .
In addition , in recent years , virulent , systemic FCV ( vs - FCV ) strains causing severe systemic diseases with a high mortality rate of up to 67 % have been reported in cats .