38 
PRINCIPLES OF BACTERIOLOGY 
XIII. The Distribution of Bacteria in the Animal Body 
While no organ in the animal body, except such 
structure as nails, is free from invasion from one or an¬ 
other kind of bacterium, still certain organs, in the 
course of evolution, have come to be preferred by cer¬ 
tain bacteria as their domicile, to the exclusion of other 
organs, and it may be useful to append the following 
table of bacterial distribution in the body. 
Shin .—Staphylococci and Streptococci. Tubercle, leprosy and smeg¬ 
ma bacilli. Tetanus, gas, and anthrax bacilli. 
Nose and Throat. —Staphylococci, streptococci and pneumococci, 
diphtheria, influenza and pertussis (whooping cough) 
organisms. Meningococci and catarrhalis groups. 
Tubercle bacillus and virus of poliomyelitis (infantile 
paralysis). 
Ear and Eye. —Streptococcus, staphylococcus and pneumococcus 
groups. Diphtheria and influenza groups. Koch- 
Weeks and Morax-Axenfeld bacilli. Gonococcus. 
Lungs .—Streptococcus and pneumococcus. Tubercle bacillus, staphy¬ 
lococcus, Friedlander *s bacillus, influenza and pertussis 
groups, anthrax and plague bacilli, actinomyces and 
colon-typhoid group. 
Pelvic Organs .—Streptococcus and Staphylococcus groups. Gono¬ 
coccus and Spirocheta pallida. Tubercle and Smegma 
bacilli. 
Serous Fluids: 
1. Cerebrospinal fluid: (a) clear fluid, tubercle bacil¬ 
lus, Spirocheta pallida (syphilis), virus of poliomycli- 
. tis. (b) turbid fluid: pneumococcus, streptococcus, 
meningococcus, B. influenzae, typhoid-colon group. 
2. Pleural and pericardial fluids: (a) clear fluids; 
tubercle bacillus, (b) turbid fluid: pneumococcus, 
streptococcus, B-. influenza, typhoid, staphylococcus, 
3. Peritoneal fluid: Streptococcus group. Colon-typhoid 
group. Tubercle bacillus. 
Blood .—Streptococcus and pneumococcus groups. Typhoid group. 
Staphylococcus group. Recurrent fever and spirocheta?. 
Plague bacilli. Friedlander*s bacillus (rare). 
