674 INDEX OF INFECTIOUS DISEASES. 
coli communis, 451, 453, was the only micro-organism present. 
Streptococci and other varieties of bacteria from the intestines are 
also occasionally found. 
Arthritis. The pneumococcus of Fraenkel, 509, has been fre- 
quently found in arthritis following pneumonia. The gonococcus 
of Neisser, 528, has been often met with in gonorrhceal arthritis. 
Streptococci, 483, and staphylococci, 469, have been obtained from 
the pus of the affected joints in suppurative arthritis following 
scarlet fever. 
Beri-beri. Various species of bacteria have been found in the 
blood and tissues of persons affected with beri-beri, but none of these 
have been demonstrated to be the specific cause of the disease. 
Bronchitis. From the sputa of patients with putrid bronchitis 
a spore-bearing bacillus has been obtained, the cultures of which 
gave off the characteristic odor of fetid bronchitis. Hitzig (1895) 
obtained two bacilli-resembling the colon bacillus from a case of 
putrid bronchitis. In ordinary acute bronchitis the pneumococcus 
and streptococcus are most frequently found, but also small cocci like 
the gonococci in shape, and occasionally other bacteria, especially 
very small bacilli. In epidemics of influenza the influenza bacillus 
is frequently found. 
Bronchopneumonia. The micro-organism most frequently met 
with in bronchopneumonia is the pneumococcus of Fraenkel, 507, 
508, 511; next to this the streptococcus, 483; then Friedlander’s 
bacillus, 458, and the staphylococcus—alone or in combination. 
At times the influenza bacillus, 325, is often found also. In pneu- 
monia complicating typhoid fever the typhoid bacillus may be 
present in almost pure culture. 
Bubo. The pus from an unopened inguinal bubo following chan- 
croid is usually sterile, though it may sometimes contain the ordinary 
pus micrococci. 
Bubonic Plague. Due to the presence of the bacillus pestis of 
Kitasato and Yersin, in the contents of the buboes and in the blood 
of infected animals and man, 607. 
Carcinoma. No micro-organism has as yet been demonstrated 
to bear any causal relation to cancer. Some attribute the disease to 
protozoa. : 
Cerebro-spinal Meningitis. The micro-organism most fre- 
quently found in cerebro-spinal meningitis complicating other diseases 
is the pneumococcus, 510, 511, of Fraenkel ; while in uncomplicated 
epidemic cases the diplococcus intracellularis meningitidis, 516, 519, 
