منابع مشابه
Some aspects of virulence of isoniazid-resistant tubercle bacilli.
Mycobacterial strains examined : a) No. 386R-INH, b) H37RvR-INH, c) BCGR-INH, d) No. 386R-TB1• INH. The first three strains were isolated in one step on slants of Ogawa's medium containing INH in a concentration of 100ƒÁ per ml from their parent strain; No. 386, H37Rv, and BCG respectively, of which the history was described in our previous paper(10). Although these three INH-resistant strains ...
متن کاملThe virulence of isoniazid resistant tubercle bacilli, recovered from patients during treatment.
For infection of animals control-cultures from the sensitivity tests were used. These were always the first subcultures on solid egg medium about four weeks old. The cultures were resistant to isoniazid, but susceptible to streptomycin, para-aminosalicylic acid and conteben. They were weighed wet, suspended in normal saline and injected subcutaneously in the right inguinal region. The guinea pi...
متن کاملCatalase activity and isoniazid sensitivity of tubercle bacilli.
sam (1956). Peizer and Widelock (1955), however, failed to find a consistent relationship between isoniazid sensitivity and catalase activity. Since the catalase test is easily performed and gives an immediate result, it would obviously be of value as a presumptive indicator of isoniazid resistance if it were proved to be consistently negative in isoniazid-resistant cultures. In order to obtain...
متن کاملLow incidence of rifampicin-resistant tubercle bacilli.
In a six-year survey 10(0.15%) of 6849 patients with European names and 31 (1.0%) of 3079 patients with non-European names yielded cultures of Mycobacterium tuberculosis that were resistant to rifampicin. Only two of each group had organisms resistant to rifampicin alone. Resistance to one or more other antituberculous drugs was found in eight of the European and 29 of the non-European group. T...
متن کاملA simple method for detecting streptomycin-resistant tubercle bacilli.
Since the advent of streptomycin therapy in tuberculosis, the need has arisen for a rapid, simple method for detecting the emergence of resistant strains of Myco. tuberculosis. Methods so far described, for example, that of the M.R.C. (1948), are mostly designed for accuracy, but they have the disadvantage of requiring considerable manipulation. The slide culture technique (Giammalvo, Natsios, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: BMJ
سال: 1954
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.4854.128