Ringworm - Ringworm is a skin disease which can be caused by several different types of dermatophilic fungi. Numerous species of animals can transmit ringworm to people: dogs and cats, especially kittens or puppies, cows, goats, pigs, and horses can transmit ringworm to people. Humans contract ringworm through direct contact with an infected animal's skin or hair.
· Salmonellosis – This bacterial disease is frequently associated with poultry. However, strains of salmonella can infect horses and they constitute a zoonotic risk for humans. Furthermore, there are strains of this bacterium that exhibit resistance to multiple antibiotics. These represent a significant health risk to horses as well as to humans.
· Screwworm - The scientific name for Screwworm is Chochliomyia hominivorax, which literally means "eater of man", although Screwworm infestation in humans is rare, it can, and does occur. Horses infested with Screwworm, like other livestock, could be a source of infection for humans.
· Tetanus - Tetanus is an uncommon but often fatal disease that affects the central nervous system and which causes painful muscular contractions. Tetanus bacteria gain entry to the body, usually through a wound or cut exposed to contaminated soil. Tetanus spores are widely distributed, usually in soil, dust, and manure. Horses and humans are the most susceptible of all the animal species to tetanus.
· Venezuelan Equine Encephalomyelitis - VEE is a disease that is fatal to both horses and humans. In this case, horses do play a role in the transmission of the disease. The U.S. is currently free of VEE; the last outbreak occurred in 1971. At the time, the disease had spread from South America up through Central America and Mexico into Brown County, Texas, killing tens of thousands of horses and humans during that epidemic. The disease remains an ever prevailing threat in several South American countries. It is sporadically reported from Mexico, the last confirmed case in horses being reported in 1991. VEE is considered a very serious biosecurity threat because of its highly infectious nature and its significant human health impact.
· Vesicular Stomatitis (VSV) - Another disease that is common to cattle, sheep, swine and horses as wall as humans is Vesicular Stomatitis. The clinical features of this disease in ruminant species cannot be differentiated from Foot and Mouth Disease. This requires laboratory confirmation of the virus. Direct contact with VS lesions reportedly can spread the virus from animals to humans.
Whatever course you decide upon, there is always someone to tell you that you are wrong. There are always difficulties arising which tempt you to believe that your critics are right. To map out a course of action and follow it to an end requires courage.