ACE and respiratory system disorder: Comorbid conditions include diabetes mellitus (43%) of patients, history of flu vaccine (45%), gastrointestinal history (24.42%), HIV (0.92%), hypertension (HTN) (70.97%), nonsteroidal anti-inflammatory drug (NSAID) usage (31.8%), obesity (57.14%), angiotensin-converting enzyme inhibitor (ACEI) usage (36.4%), history of cardiovascular disease (41.94%), history of respiratory disease (39.17%), smoking history (38.25%), and cancer history (8.29%) (Table 1, Figure 2).