How to prevent feline upper respiratory illness<br>Get your cat vaccinated. Vaccination against cat flu is considered an essential vaccine. The flu vaccine needs to be given regularly and it comes in a variety of types (modified live, modified live intranasal, killed vaccine) which determines how often the vaccine needs to be given.

Can we draw the following conclusion?
The flu vaccine should be given regularly.

OPTIONS:
(i). Yes
(ii). It's impossible to say
(iii). No