Techniques were developed to use immunohistochemistry to demonstrate the expression of individual leptospiral antigens in the tissues of experimentally infected hamsters. It was demonstrated that certain antigens which are expressed in abundance in vitro are not expressed on organisms in vivo.

Equine influenza is highly contagious and has been shown to be responsible for up to 66% of viral respiratory disease in horses. Protection is critical for all horses because it spreads so rapidly. In fact, one horse can infect an entire stable in a matter of days.

The recent outbreak of foot and mouth (F & M) disease in the UK has had unfortunate side effects, not for horses themselves, but for those involved in equine activities, such as racing, show jumping and, even, hacking. The disease is caused by a virus of the family Picornaviridae, genus Aphthovirus with 7 serotypes (A, O, C. South African (SAT)1, 2 and 3, Asia1).

Anthrax occurs worldwide and is associated with sudden death of cattle and sheep. Anthrax can infect all warm-blooded animals, including man. The anthrax organism (Bacillus anthracis) has the ability to form spores and become resistant to adverse conditions. Anthrax organisms in animals or their secretions may be destroyed by pasteurization or ordinary disinfectants.

Lyme disease is a bacterial illness caused by the spirochetal (corkscrew shaped) bacterium Borrelia burgdorferi. It is most commonly transmitted by the bite of infected Ixodes spp ticks, commonly referred to as "deer ticks" or "black legged ticks".

Equine Eastern Encephalitis (EEE) is a viral disease that is often fatal in horses. This disease occurs in areas and at times where the mosquito population is abundant. Climatic events associated with epidemics include excessive rainfalls and higher than normal water temperature.

EIA is a serious, sometimes fatal, blood disease in horses and other equine, including ponies, mules, asses, donkeys and zebras. Also known as swamp fever, mountain fever, slow fever or malarial fever, EIA infects the host's white blood cells. About 30 percent of known EIA cases result in death, usually within two to four weeks of the disease's onset.

Ulcerative lymphangitis is a mildly contagious disease of horses characterised by inflammation of the lymphatic vessels of the lower limbs. Classical disease is caused by Corynebacterium pseudotuberculosis, but similar lesions can be produced by other pyogenic bacteria.

Botulism is a deadly form of food poisoning. It is caused by a toxin produced in food by a micro-organism which lives in soil all over the world. The organism has the ability to form a spore, or case, around itself that is resistant to heat and chemicals.

Information for the Horse Owner. This pamphlet has been compiled by a horse owner for other horse owners as a source of information on equine recurrent uveitis. The impetus for this project came from owners across the country seeking information on this disease and pooling their knowledge to help each other.