. Pathogenic microörganisms; a practical manual for students, physicians, and health officers . ly termed diphtheroids. They have been foundin the nose, throat, eye and other parts of the body, both in health and in disease (Hodgkins disease, leukemia,etc.). Several of them, e. g.,,B. xerosis, are considered distinct species(see below). Since this type of organism isso widely distributed, any specific patho-genic properties attributed to them, unlesspositive proof is offered, must be receivedwith reserve. Bacillus Hofmaimi (Pseudodiphtheria Ba-cilli).—These bacilli are rather short
. Pathogenic microörganisms; a practical manual for students, physicians, and health officers . ly termed diphtheroids. They have been foundin the nose, throat, eye and other parts of the body, both in health and in disease (Hodgkins disease, leukemia,etc.). Several of them, e. g.,,B. xerosis, are considered distinct species(see below). Since this type of organism isso widely distributed, any specific patho-genic properties attributed to them, unlesspositive proof is offered, must be receivedwith reserve. Bacillus Hofmaimi (Pseudodiphtheria Ba-cilli).—These bacilli are rather short, plump, and more uniform in size and shape than Fig. ba- ^^^ t™e Lofflcr baciUus (Fig. 122). Onciiii. (B. hofmanni.) blood serum their colony growth is very similar to that of the diphtheria bacilli. Thegreat majority of them in any young culture show no polar granules whenstained by the Neisser method, and stain evenly throughout with thealkaline methylene blue solution. They do not produce acid by thefermentation of glucose, as do all known virulent and many non-. micro-aMrophilic diphtheroids 303 virulent diphtheria bacilli; therefore there is no increase in acidityin the bouillon in which they are grown during the first twenty-fourhours from the fermentation of the meat sugar regularly are found in varying abundance in different localities in NewYork City, in about 1 per cent, of the normal throat and nasalsecretions, and seem to have now at least no connection with diph-theria; whether they were originally derived from diphtheria bacillusis doubtful. They have been called pseudodiphtheria bacilli, and moreproperly B. hofmanni. In bouillon they grow, as a rule, less luxuri-antly than the diphtheria bacilli. Some of the varieties of the pseudo-diphtheria bacilli are as long as the shorter forms of the virulent these are found in cultures from cases of suspected diphtheria theymay lead to an incorrect diagnosis. These baci
Size: 1581px × 1581px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauth, bookcentury1900, bookdecade1910, bookidcu31924000235212
