56 Veterinary Medimie. 



DIFFERENTIAL SYMPTOMS AND PHENOMENA. 



Hog Cholera. 



Incubation 6 days + — 



Mucosae not necessarily 

 congested 



Petechise on snout, eyes, 

 month, etc 



Necrotic ulcers on snout, 

 mouth, skin, etc 



Furred tongue, vomiting 

 common 



Temperature high in 

 acute cases (104° to 

 108°) - — 



Lies on belly mostly. 

 Abdomen hot, tender. 



Moves stiffly, feebly, un- 

 steadily with grunting, 

 may be paraplegic 



Bowels ist costive, faeces 

 molded, glazed ; 2d or 

 3d day, or before death, 

 diarrhoea, profuse, 

 watery, foetid, bloody, 

 black on slops, — ^yel- 

 low on corn (maize) __ 



Everted anus dark red 



Cough often present, 

 hurried breathing 



Spleen slightly enlarged 



When death is deferred 

 I to 2 weeks, necrotic 

 button- like ulcers on 

 ilio-csecal valve, cae- 

 cum, colon, or ileum 



Lobar pneumonia un- 

 common 



Kills rabbits (5 to 7 days) 

 and Guinea pigs (7 to 

 12 days) Pigeons sick- 

 en but survive. 



Blood serum of hog 

 cholera patient causes 

 agglutination of ba- 

 cilli in cultures; (not 

 constant, occurs with 

 other bacilli) 



Swine Plague. 



Incubation i day to +_ 

 Mucosae congested 



Petechiae on snout, eyes, 



mouth, etc 



Necrotic ulcers rare 



Vomiting less likely 



Temperature high in 

 acute cases 



May lie on side 



Stiff but less so, Paretic. 



Souget. 



Incubation i day 



Mucosae deeply congest- 

 ed, dark red, violet.. 

 Petechise extensive 



Necrotic ulcers less fre- 

 quent 



Vomiting not uncom- 

 mon 



Temperature very high, 

 107° to 109° 



May lie on side 



Stiff, weak, paraplegic. 



Diarrhoea less marked. Diarrhoea usually sets in 

 may be entirely absent 



Anus may not be deep 

 red, less everted 



Cough, hard, frequent ; 

 wheezing breathing. 

 Auscultation and per- 

 cussion may show lung 

 consolidation toward 

 lower border. May 

 bleed from nose 



Spleen usually little al- 

 tered 



Necrotic, button-like 

 ulcers on caecum rarely 

 marked 



Anus may be less red, 

 less everted 



Cough absent, save in 

 latter stages with pul- 

 monary consolidation 



Spleen enlarged, soft, 

 grumous 



Necrotic ulcers on bowels 

 rare 



Lobar or lobular pneu- Pulmonary and enteric 

 monia a marked lesion inflammation rare 



Kills rabbits (i to 12 Kills pigeon (3 to 8 days), 

 days), Guinea pigs (i rabbit (4 to 8 days), 



to 4 days), pigeon (48 Guinea pig resists 



hours ) 



