Background: Selenium plays a vital role in the immune status of the individual. The prospective observational study was conducted from September 2009 to March 2010. The aim of the present study is to investigate the association between serum selenium levels and pulmonary tuberculosis (PTB) patients with (n = 40) and without HIV (n = 40) in comparison to healthy controls (healthy family members; n = 20) who satisfied rigid selection criteria.
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