Southampton Veterinary Clinic

26292 Delaware Road
Franklin, VA 23851





Vaccines are preparations of killed microorganisms, living weakened microorganisms, etc. introduced into the body to produce immunity to a specific disease by causing the formation of antibodies. Vaccines are very delicate compounds, which if handled or administered incorrectly will be ineffective or neutralized.

Vaccines are administered initially as a two-shot series and then annually or semiannually. The vaccines and vaccine protocols listed below are tailored to our practice and geographic location and follow the guidelines of the AAEP.


Eastern & Western Encephalomyelitis: Encephalomyelitis is caused by a virus, which is transmitted by mosquitos. The virus causes inflammation of the brain and spinal cord.  The vaccine is very effective against the disease. The protection lasts 6 months, therefore we recommend administrating the vaccine twice a year(semiannually).


Tetanus Toxoid: Tetanus is a disease  caused by a specific toxin of a bacillus (Clostridium tetani)which usually enters the body through wounds. It is characterized by spasmodic contractions and rigidity of some or all of the voluntary muscles (especially of the jaw, face and neck). The bacteria is found in horse manure. The vaccine is very effective and administered once yearly. The vaccine is boostered in case of  laceration, surgery, or pentrating wounds.



West Nile Virus: West Nile virus is transmitted by mosquitos. The virus causes inflammation of the brain and spinal cord. Because Long Island has a long mosquito season and the vaccine protection lasts 6-7 months,  we recommend semiannual vaccination. Horses that travel to Florida should be boostered  2 weeks before travelling. Veterinarians in problem areas vaccinate 2-4 x per year.


Rhinopneumonitis: Rhinopneumonitis is a herpes virus which causes respiratory infections, abortions, and inflammation of the spinal cord. The vaccine is not  100% effective and the protection only lasts 10-12 weeks.  Pregnant  mares should be vaccinated at 3.5, 7 and 9 months from the breeding date. Horses that are travelling to shows, races, sales, etc. should be vaccinated every 3 months. Pleasure horses that do not travel should be vaccinated twice a year. The vaccine does not protect against the neurologic form of the disease.


Influenza:Influenza is a virus that causes high fever and respiratory infection. The vaccine is not 100% effective, and the protection lasts only 10-12 weeks. Horses travelling to shows, sales, racing events, etc..should be vaccinated every 3 months. Horses that do not travel should be vaccinated at least twice a year.



