Just as with the human common cold, the virus that causes this
upper respiratory tract infection is easily transmitted from one cat
to another, so vaccination is imperative if your pet will come in contact
with other cats.

Its symptoms may take the form of moderate fever, loss of appetite, sneezing, eye and nasal discharges and coughing.

Kittens are particularly affected, but this disease can be dangerous in
any unprotected cat, as effective treatment is limited. Even if a cat
recovers, it can remain a carrier for life.