It's estimated that somewhere around 80-90% of cats have been exposed to the herpes virus. It's nearly unavoidable...get the cat. Typically the virus becomes dormant in adult cats but may flare up in times of stress. 500mg of l-lysine per day will usually keep it under control, l-lysine is available OTC and is inexpensive. If he's one of the few that has some chronic symptoms you can use 250 mg of l-lysine per day for maintenance.
Kobi had a URI as a kitten...he's now 11 and never had it again.
Kobi had a URI as a kitten...he's now 11 and never had it again.