Tetanus Shot: In the shot put a heavy metal sphere is propelled from a circle seven feet in diameter; four feet of its circumference-in the forepart of the circle-contains a toeboard four inches high. In this event the shot is not allowed to pass behind or below the shoulder, so that technically it is "put" rather than "thrown." A 16-pound shot is used in major masculine competition, such as in the Olympic Games, national championships, and intercollegiate competition; the 12-pound shot is usually used by males in secondary schools, and the 8-pound shot is used in feminine competition, including the Olympic Games. In the games the shot put is also one of the 10 decathlon events for men. A put of over 65 feet has been made with the 16-pound shot, and a woman has exceeded 56 feet with the 8-pound shot.
tetanus shot (Lockjaw). tetanus shot is an infectious.-ase caused by toxins (poisonous substances) 'he bacterium Clostridium tetani. It is charrized by persistent spasmodic contractions of body muscles and is usually fatal. This dis-! is worldwide in distribution. Fhe causative bacterium is a common inhabi-in the digestive system of the horse, but it i not produce the toxin until it enters a deep nd where oxygen is lacking. This is why ) wounds, such as nail punctures and cuts, >o dangerous.
ome horses can be saved with proper care, .ecovery is slow. Prevention is by far the practical course. This is done either by the I tetanus shot antitoxin, which produces an im-ite immunity of short duration, or by the aistration of tetanus shot toxoid, which produces ing immunity. Toxoid-produced immunity rs two injections, four to six weeks apart, s maintained by annual booster injections, juine Encephalomyelitis (Virus Encephalitis). ie encephalomyelitis is an infectious disease :terized by inflammation of the brain. The oms are fever, staggering, wandering, inflation, yawning, grinding of teeth, depres-irooping of lower lip, inability to swallow, sis, and death.
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