SYMPTOMS 



469 



CASKS OF RABIES IN DOGS, BY MONTHS. 



Bourrel __] 36 



St. Cyr ' 12 



p. 

 < 



3'! 26 

 15' 6 



Hogyes '309, 510314 



Leblanc 

 France 



1895 - 



1896 . 

 1897- 

 i8q8 . 



103 97 121 



32 32j 421 32 



15 13I 7 4 



367 450, 5021 508 



192 155 138 147 



S9| 155 153; 184 i8i| 129 157 



124! 13H 151I 150 1471 199 138 



1311 151 189! 202 225' 172 192 



1391 148 ___ 181 216; 278 185 



Total 943 1045 960 



1323 1419 1467 



1435 



30 35 41 



9 I, 3 



537' 455438 



1231 104I117 



147 

 117 



154 



177 



J 294 



133 no 



T3lil25 



136,131 



i50j-^ 



11451965 



2; I o , H 



24! 32I 393 



— I 2' 87 



303 396, 4961 



95I 100' 1492 



105, 149] 1692 



103I 164' 1687 



150; 140 1973 



1531 154 1781 



933 "37 



14066 



§ 372. Symptoms. Rabies is generally divided into 

 two forms, furious and dumb. In the first the animal is irri- 

 table, aggressive and bites nearh' every object which comes in 

 its way ; in the second the muscles of its jaws are paralyzed 

 almost from the beginning and being unable to bite the ani- 

 mal remains more quiet and tranquil. Es.sentially the two 

 forms of the disease are the same, but probably owing to the 

 parts of the brain attacked or the acuteness of the attack or 

 both, paralysis appears much sooner in the dumb form than in 

 the other. The saliva from a case of dumb rabies is just as 

 dangerous and virulent as that from a case of furious rabies. 

 Dogs affected with dumb rabies are less dangerous simply be- 

 cause they are unable to bite and thus to infect others. 



Dumb rabies and furious rabies do not always represent 

 two distinct types of disease. The typical cases belong to the 

 two extremes of symptoms and there are always graduations 

 between them. In fact, almost every case of furious rabies 

 sooner or later changes to the dumb form, that is, the final 

 stage of the disease is almost invariably paralytic. In the 

 typical development of the dumb form, the paralysis occurs on 

 the first day of the disease. It may not appear, however, 

 until the second or third or even a day later. 



Again, a dog does not necessarily bite everything about it 

 even if it has rabies and its jaws are not paralyzed. It may be 

 combative and furious all of the time or only part of the time, 



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