In this study, we have evaluated the broth microdilution method (BMM) for susceptibility testing of Mycobacterium tuberculosis. A total of 43 clinical isolates of M. tuberculosis and H37Rv as a control strain were studied. All isolates were tested by the proportion method and the BMM for isoniazid (INH), rifampicin (RIF), streptomycin (STR), and ethambutol (ETM). The proportion method was carri...

Indirect drug susceptibility tests of Mycobacterium tuberculosis was done to investigate the accuracy and feasibility of a broth microdilution method (BMM) for determining minimal inhibitory concentrations of conventional drugs against M. tuberculosis. Test drugs included isoniazid (H), rifampicin (R), ethambutol (E), streptomycin (S) and pyrazinamide (Z). Fifty isolates of M. tuberculosis from...

A total of 92 isolates of Mycobacterium tuberculosis consisting of equal numbers of sensitive and resistant strains was tested for their susceptibility to sulbactam and ampicillin (in the ratio of 1:2) on Lowenstein-Jensen (LJ) and 7H11 agar media. The geometric mean MIC was 63.97 micrograms/ml for the drug sensitive strains and 65.92 micrograms/ml for the resistant strains, and the overall mea...

OBJECTIVE To evaluate the false negative results of Ziehl-Neelsen (ZN) smear microscopy. STUDY DESIGN Descriptive study. PLACE AND DURATION OF STUDY Mycobacteriology Laboratory, Allama Iqbal Medical College (AIMC) and Jinnah Hospital, Lahore (JHL), Pakistan, from February 2014 to August 2016. METHODOLOGY A total of 3,951 (pulmonary 2,773 and extra-pulmonary 1,178) samples were collected f...

The logics treated here are the intermediate propositional logics of the form LJ + Ni(a), where Ni(a)’s are axioms of only one variable studied in Nishimura [6]. As is easily seen, the problem of the disjunction property of LJ+Ni(a) starts from i = 10 and the case of odd i can be trivially neglected. The case of i = 10 was solved by Kreisel and Putnam [5] and other cases except i = 14 were solv...

Since Buschke and Löwenstein first described the giant condyloma in 1925 (which subsequently was named Buschke-Löwenstein tumor), there have been scattered reports over the past 90 years describing presentation and different avenues of treatment for patients with this condition. It is well known that immunocompromised individuals are at an increased risk of anogenital disease caused by human pa...

Clinical samples obtained over a period of 8 months (n = 2,624) were processed in parallel with the BACTEC 460TB system, with the MGIT 960 system, and in Löwenstein-Jensen (LJ) medium, resulting in the recovery of 127 mycobacteria. Recovery rates in combinations of the BACTEC 460TB or MGIT 960 system with LJ were, respectively, 94.7 and 94.7% for Mycobacterium tuberculosis complex (n = 57) and ...

Early, efficient and inexpensive methods for the detection of pulmonary tuberculosis are urgently needed for effective patient management as well as to interrupt transmission. These methods to detect M. tuberculosis in a timely and affordable way are not yet widely available in resource-limited settings. In a developing-country setting, we prospectively evaluated two methods for culturing and d...

A 4-month trial involving 2,563 routine clinical specimens was conducted to compare the improved BACTEC TB system (12B medium) with the conventional Lowenstein-Jensen (LJ) media for the isolation, identification, and susceptibility testing of mycobacteria. One hundred sixty-two mycobacterial isolates were recovered, 147 (91%) with BACTEC and 118 (73%) with LJ media. Of these, 62 were Mycobacter...