Lymph nodes from guinea pigs inoculated with Mycobacterium tuberculosis were fixed in buffered formalin, then treated for the recommended times in Gooding and Stewart's fluid, EDTA, aqueous nitric acid, von Ebner's fluid, and rapid decalcifier (RDC). The blocks were processed to paraffin wax and sections were stained by the Ziehl-Neelsen technique. Only in sections of the blocks treated with RD...

Background and Aims: Tuberculosis (TB) is severe infectious disease caused by Mycobacterium tuberculosis imposes significant morbidity mortality. Early diagnosis of active TB forms pulmonary extrapulmonary very important the diagnostic methods such as culture test Ziehl-Neelsen (ZN) stain displayed low accuracy. Cartridge-based nucleic acid amplification (CBNAAT) widely used for with good accur...

The authors present the first, to the best of their knowledge, reported case of cutaneous infection caused by Mycobacterium parascrofulaceum. A 42-year-old woman presented with asymptomatic reddish papules, nodules, plaques, and patches on the right side of her face and on her forehead that had persisted for 5 years, with the lesions gradually increasing in size over that time. No previous inte...

We analyzed 150 patients with pulmonary tuberculosis from 1990 to 1996 (i) to evaluate the frequency of drug resistance, (ii) to elucidate factors influencing the response to chemotherapy, and (iii) to attempt to improve the therapeutic approach. Multidrug-resistant tuberculosis strains were not found. By univariate analysis, there were 8 factors associated with an increased sputum conversion t...

Intestinal protozoan infection is one of the leading causes morbidity and mortality worldwide. However, it difficult to estimate true problem protozoal infections because cases are under-reported. This study aimed identify intestinal protozoa in healthy adults. used a categorical descriptive research design multistage random sampling technique. was conducted Pasie Nan Tigo, Koto Tangah, Padang ...

ABSTRACT Cryptosporidium spp. are important enteropathogen protozoan parasites that infect humans and other animals throughout the world. Cryptosporidiosis in cattle industry leads to considerable economic losses due diarrhea, dehydration, growth retardation, weight loss, possibly death, however, data on occurrence ofCryptosporidiumspp. Colombia limited. Therefore, this study aimed investigate ...