gS Veterinary Medicine. 



DIFFERENTlAIv SYMPTOMS AND PHENOMENA. 



Hog Cholera. 



Incubation 6 days +..__ 



Mucosae not necessarily 

 congested 



Petechise on snout, eyes, 

 mouth, 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- 

 steadilywith 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 

 iliocsecal valve, cae- 

 cum, colon, or ileum __ 



Lobar pneumonia un- 

 common 



Kills rabbits ( 5 to 7 day s ) 

 and Guinea pigs (7 to 

 12 days) Pigeons sick- 

 en but survive 



Blood serum of hog 

 cholera patient causes 

 agglutination of ba- 

 cilli in culttires; (not 

 constant, occurs with 

 other bacilli) 



Swine Plague. 



Incubation i day to -f-.. 

 Mucosae congested 



Petechias 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. 



Diarrhoea less marked, 

 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 



Lobar or lobular pneu- 

 monia a marked lesion 



Kills rabbits (i to 12 

 days), Guinea pigs (i 

 to 4 days), pigeon (48 

 hours) 



Bouget. 



Incubation i day 



Mucosae deeply congest- 

 ed, dark red, violet — 

 Petechiae extensive 



Necrotic ulcers less fre- 

 quent 



Vomiting not uncom- 

 mon 



Temperature very high, 

 107° to 109° 



May lie on side 



Stiff, weak, paraplegic. 



Diarrhoea usually sets in 



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 



Pulmonary and enteric 

 inflammation rare 



Kills pigeon (3 to 8 days) 

 rabbit (4 to 8 days) 

 Guinea pig resists 



