MICROBIAL DISEASES OF MAN AND DOMESTIC ANIMALS 725 



Mucor, Penicillium, and Aspergillus, in such situations has been fre- 

 quently reported in literature. In very large measure at least such 

 presence may be regarded as evidence of lack of care, cleanliness, 

 of even ordinary precautions when the infection involves man. 



Thrush* 



The parasite of thrush, Oidium albicans Robin, {Saccharomyces albi^ 

 cans, Reiss), in culture produces a scanty mycelium, submerged in the 



Fig. 150. — Oidium albicans, from a culture obtained from Krai. 



substratum, which branches monopodially. The tendency to budding 

 and to the entire suppression of the mycelium leads some to regard this 

 form as a yeast (Fig. 150). It attacks the mucous membrane of the 



Fig. is'^.— Oidium albicans. {Kohle and Wassermann.) 



mouth and throat in young animals only, producing vesicles, then white 

 membranouspatchescbmposedof the inycelium of the fungus (Fig. 151). 

 It is to be recognized in such cases by microscopical examination. The 

 same disease affects children and is found in fowls, calves, and colts. 



• Prepared by Charles Thorn. 



