There was an article published recently here in the states regarding the new vaccine protocols for dogs and cats - this protocol is endorsed by all 27 vet schools in the US and may help with regard to your questions about yearly innoculations ... I have copied only the section that relates to cats and put into bold print the section which deals with FRV/Herpes. Hope this helps a little.
NEW RECOMMENDATIONS FOR CATS
Feline vaccine related Fibrosarcoma is a type of terminal cancer related in
inflammation caused by rabies & leukemia vaccines. This cancer is thought to
affect 1 in 10,000 cats vaccinated. Vaccines with aluminum adjuvant, an
ingredient included to stimulate the immune system, have been implicated as a higher risk.
We now recommend a non-adjuvanted rabies vaccine for cats. Testing by Dr.
Macy, Colorado State, has shown this vaccine to have the lowest tissue reaction and although there is no guarantee that a vaccine induced sarcoma will not develop, the risk will be much lower than with other vaccines.
Program injectable 6 mo flea prevention for cats has been shown to be very
tissue reactive & therefore has the potential of inducing an injection site
fibrosarcoma. If your cats develops a lump at the site of a vaccination, we
recommend that it be removed ASAP, within 3-12 weeks.
Feline Leukemia Virus Vaccine This virus is the leading viral killer of cats.
The individuals most at risk of infection are young outdoor cats, indoor/outdoor cats and cats exposed to such individuals. Indoor only cats with no exposure to potentially infected cats are unlikely to become infected. All cats should be tested prior to vaccination.
Cats over one year of age are naturally immune to Fel.V whether they are
vaccinated or not, so annual vaccination of adult cats is not necessary.
The incubation period of Feline leukemia can be over 3 years, so if your cat is in the incubation state of the disease prior to vaccination, the vaccine will not prevent the disease.
Feline Panleukopenia Virus Vaccine. Also called feline distemper is a highly
contagious and deadly viral disease of kittens. It's extremely hardy and is
resistant to extremes in temperature and to most available disinfectants.
Although an effective treatment protocol is available, it is expensive to treat.
Because of the serious nature of the disease and the continued presence of virus in the environment, vaccination is highly recommended for all kittens. Cats vaccinated at 6 month or older with either killed or MLV vaccine will produce an immunity good for life. Adult cats do NOT need this vaccine.
"Feline Calicivirus/Herpesvirus Vaccine. Responsible for 80-90% of infectious
feline upper respiratory tract diseases. The currently available injectable
vaccines will minimize the severity of upper respiratory infections, although
none will prevent disease in all situations. Intranasal vaccines are more
effective at preventing the disease entirely. Don't worry about normal sneezing for a couple of days. Because intranasal vaccines produce an immunity of shorter durations, annual vaccination is recommended.
VACCINES NOT RECOMMENDED
Chlamydia or pneumonitis. The vaccine produces on a short (2 month) duration of immunity and accounts for less than 5% of upper respiratory infections in cats. The risks outweigh the benefits.
Feline Infectious Peritonitis. A controversial vaccine. Most kittens that contract FIP become infected during the first 3 months of life. The vaccine is
labeled for use at 16 weeks. All 27 vet schools do not recommend the vaccine.
Bordetella. A new vaccine for feline bordetella has been introduced. Dr.
Wolfe of Texas A&M says that bordetella is a normal flora and does not cause
disease in adult cats. Dr. Lappin of Colorado State says that a review of the
Colorado State medical records reveals not one case diagnosed in 10 years.