Yes. Untreated sleep apnea impairs the immune defences of the airways, making patients significantly more vulnerable to respiratory infections. Dr. Dixit Kumar Thakur sees patients who have undergone repeated lung infection treatment in Delhi — pneumonia, bronchitis, recurring chest infections — without anyone investigating sleep apnea as the underlying cause. At PulmoVista Clinics, patients seeking lung infection treatment in Delhi are routinely screened for OSA as part of a comprehensive respiratory workup.