Pulmonary Tuberculosis With Dyspnea (Pulmonology (Asthma Doctors))

Medical Case Details:

A 40-year-old male patient present with a history of dyspnea for a week. He had a history of pulmonary tuberculosis without dyspnea and has already completed six anti-tuberculosis drugs. On examination, his blood pressure is 120/67 mm Hg, pulse rate is 100/min, and SpO2 (blood oxygen saturation level) is 92% without O2. His chest x ray shows mild right pleural effusion with bilateral basal miliary mottling. But my question is whether the present condition is due to relapse of PTB (Pulmonary tuberculosis) or COVID-19 infection?