276 MODERN BIOLOGIC THERAPEUSIS 



must be formed to destroy all the types of bac- 

 teria involved. 



Bacteriology Bacteriologic examinations of 

 diseases of the nose and respiratory tract by 

 Birkett, Meakins, Patterson (The Laryngo- 

 scope, September, 1910), and other investiga- 

 tors have demonstrated that no one specific mi- 

 croorganism is always present as the causative 

 agent, but rather several bacteria. The most 

 commonly found bacteria are the micrococcus 

 catarrhalis, influenza bacillus, Friedlander ba- 

 cillus, pneumococcus, streptococcus and staphy- 

 lococcus. 



Based on these findings, the vaccine used in 

 the prophylaxis and treatment of colds and in- 

 fluenza must consist of a combination of all of 

 the causative microorganisms. Immunization 

 against these diseases has proved of value, but 

 it is important to correct local pathologic con- 

 ditions, such as obstructions of various kinds 

 and malformations polyps, exostoses, ade- 

 noids, etc. Immunization is useful in the spring 

 and fall for persons who are subject to repeated 

 attacks of common colds, influenza, and other 

 catarrhal conditions of the nose, throat and 

 respiratory tract. 



