TETANUS 265 



6. Dorset, Bolton and McBryde. The etiologj' of hog cholera. 

 Bulletin No. 72. Bureau of Animal Industry, U. S. Dept. Agric, 

 1905- 



7. Peters. Serum therapy in hog cholera Bulletin No. 47, 

 Univ. of Neb. Agric. Exper. Station, 1897. 



S. Salmon and Smith. Annual Reports of the Bureau of Ani- 

 mal Industry, 1885-1895. 



9. Salmon. Special report on hog cholera, its history, nature and 

 treatment. U. S. Bureau of Animal Industry , 1889. 



10. Smith. Zur Kenntniss des Hog-cholera Bacillus. Central- 

 blatt fi'ir Bakter. u. Parasitenkunde , Bd. IX (1891), S. 253. 



11. Smith. Hog cholera group of bacteria. Bulletin No. 6, U. 

 S. Bureau of Animal Industry, 1894, p. 9. 



12. Smith and Moore. Experiments on the production of 

 immunity in rabbits and guinea pigs with reference to hog cholera and 

 swine-plague bacteria. Ibid., -p. 41. 



13. Reed and Carroll. Bacillus icteroides and Bacillus cholerae 

 suis. A preliminary note. The Medical News, Apr. 29, 1899. 



14. Welch. Report of investigations concerning the causation of 

 hog cholera, fohns Hopkins Hospital Bulletin, Nov. i, 1889. 



15. Welch and Clements. Remarks on hog cholera and swine 

 plague. First International Veterinary Congress of America held in 

 Chicago, III., October, 1893. 



TETANUS 



Synonyms. L,ockjaw; trismus. 



§ 188. Characterization. Tetanus is an infectious dis- 

 ease (toxemia) is which the specific organisms are locahzed at 

 the place of inoculation. It is characterized by spasmodic con- 

 traction of the muscles referable to the nervous system and 

 by the absence of obvious tissue changes. It is the result of a 

 specific wound infection. All mammalia including man are 

 susceptible. It occurs most frequently in horses, asses and 

 mules ; next to them in the smaller ruminants such as the 

 sheep and goat ; it appears least often in the dog. It is re- 

 ported to occur rarely in birds and fowls are supposed to be 

 immune. The human species is very susceptible. 



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