a 46- year–old man with pulmonary tuberculosis which had treated with ant tuberculosis drugs was referred to medical mycology laboratory, school of public health and institute of public health research for coughing and bloody sputum. chest x-ray revealed a cavern with a moveable mass in right apical lobe. direct examination of sputum showed wide septated dichotomous hyphae and aspergillus fumig...

background human immunodeficiency virus (hiv) testing strategy for tuberculosis (tb) patients in some high hiv incidence countries has been recommended based on interaction between hiv and tb. objectives the present study aimed to determine the prevalence of hiv infection among newly detected pulmonary tb patients. patients and methods in a cross sectional study,104 cases including 95 non injec...

background : multi drug-resistant mycobacterium tuberculosis (mdr-tb) is an infection with a causative bacillus which is resistant to at least two drugs, isoniazid and rifampin. the purpose of this study is to evaluate the prevalence of tb resistance to first-line drugs of newly diagnosed active pulmonary tuberculosis. methods : this cross-sectional study was performed on 77 patients with newly...

conclusions concurrent pulmonary nocardiosis and tuberculosis is frequent in hiv-infected patients. rapid and sensitive methods such as pcr are recommended for detection of such co-infections. results from 157 sputum specimens, positive samples by acid fast staining, culture and pcr for m. tuberculosis were reported for 7.6% (12/157), 10.1% (16/157) and 7% (11/157) of samples, respectively. no ...

One of the recommended strategies for preventing tuberculosis is to screen high-risk populations with respect to Mycobacterium tuberculosis (TB) infection. The aim of the present study was to investigate latent infection and active tuberculosis in people with close household contact. It was a cross-sectional descriptive, analytical study with the sample size of 668 people from homes with one in...

Background: Lower lung field tuberculosis is atypical presentation of pulmonary tuberculosis which often causes confusion in diagnosis. HIV/AIDS epidemic has considerably increased its incidence. This study was designed to identify the prevalence and different clinical conditions of lung tuberculosis in conjunction with its common clinical and radiological presentations and its treatment. Metho...

magnesium is an essential metal that has important roles in physiological function of the body organs. ethambutol is an oral antitubercular agent with chelating effects owing to its chemical structure. the aim of present study is to determine whether ethambutol usage can alter serum magnesium concentration in patients with pulmonary tuberculosis. sixty patients with diagnosis of pulmonary tuber...

background: to determine the mean and median delays in pulmonary tuberculosis (ptb) diagnosis among adults in one of the world’s highest gross domestic product per capita countries and identify patient and health system‑related reasons for these delays. methods: this is a cross‑sectional, face‑to‑face, prospective study of 100 subjects with confirmed ptb, conducted at main tuberculosis (tb) adm...