. Medical diagnosis for the student and practitioner. vidence of rabies exists he should be scientifically dispatched in sucha manner as will leave the brain uninjured. Such action not only promotes prompt diagnosis and efficient treatment,but often prevents an unfounded hydrophobia scare and the persecutionand slaughter of innocent animals. Persons bitten in the face should be placed under Pasteur preventive treatmentat once, without waiting even for the results of the laboratory tests. TETANUS {Lockjaw)Extraordinary Virulence.—The bacillus is inoculable in animals and its Marvelous toxicity.
. Medical diagnosis for the student and practitioner. vidence of rabies exists he should be scientifically dispatched in sucha manner as will leave the brain uninjured. Such action not only promotes prompt diagnosis and efficient treatment,but often prevents an unfounded hydrophobia scare and the persecutionand slaughter of innocent animals. Persons bitten in the face should be placed under Pasteur preventive treatmentat once, without waiting even for the results of the laboratory tests. TETANUS {Lockjaw)Extraordinary Virulence.—The bacillus is inoculable in animals and its Marvelous toxicity. peculiar toxin is fatal m the extraordinary dose of mg. As tetanus neonatorum, the disease especially affects new-born childrenin countries or districts where uncleanly methods are followed in the careof the navel. The soil of certain regions is peculiarly infectious, and the germ a sou dweller. Hydrophobiascares. 1126 MEDICAL DIAGNOSIS Incubation. Locked jaw. Risus,sardonicus. Spinal flexion. Fever. Head tetanus. Primary intra-nasal usually enters the body through a punctured or contused wound. The fatalitiesattending the use of toy pistols are well known. Under the new National law all serums and vaccines must now be testedfully for freedom from tetanus bacilli or spores by animal inoculation beforebeing placed on the market. The Great War, of necessity brought about the systematic wholesaleuse of antitetanic sera, and the results tended to establish its great valuewith respect both to lessened incidence and reduced mortality. Symptoms.—After a period of incubation of about a week or ten days,or more rarely two weeks, a subjective sensation of constriction of the neckand jaws with difficult mastication is followed by a tonic spasm of the muscleswhich lock the jaw, and an outdrawing of the mouth andraising of the eyebrows causing the risus gradual involvement the muscles of the trunk andextremities are affected, producing rigid extension(orthot
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1922
