Infected kittens become sicker and shed more virus than adult cats. Accordingly, sick kittens are the worst source of infection to other kittens, who in turn will get even sicker and shed more virus than the ones who gave it to them. Most veterinarians will diagnose FVR based on the clinical symptoms they see. If there is a need, however, a swab can be taken from the back of the throat and sent to a specialty laboratory to positively identify the Herpes Virus 1 that causes Rhinotracheitis. Veterinarians will often prescribe antibiotics as well, because they wish to avoid the resulting bacterial infections that happen in conjunction with the damage from the virus infection.
Supportive care is dependent upon the symptoms.
It typically means such things as keeping the eyes and nose free of mucous, treating any eye ulcers, force feeding of fluids, and a good deal of loving care. Prevention of Rhinotracheitis is a two-part program, both parts of which are equally important. Since vaccines were developed for Rhinotracheitis, the number of cats affected by this condition has dramatically decreased. It is still a disease to be reckoned with, however, because of the ease with which cats can reinfect one another, especially in multiple-cat environments. Proper immunization and management are both needed.