I have pleural effusion (L) 2° to Parapneumonic process as diagnosed by an internal medicine doctor, and I had medications of Azithromycin, 3 days and Sultamicillin for 3 weeks. After almost two months, the results of the x-ray doesn't change, it still has the same patterns or the semi-blurred parts is still the same. This week, I had PPD test and Sputum AFB Smear test. The PPD test shows an 8mm positive result while the Sputum AFB Smear test result is -- NO Acid Fast Bacilli Seen. Does this mean I have Tuberculosis?