[What pre-existing medical conditions put people at higher risk?] First of all, pulmonary disease existing as a comorbidity is also important.
[सध्याची शरीराची स्थिती कशी धोकादायक ठरते?] प्रथमतः फुफुस विकारावर जसे दमा, श्वसन विकार  यावर उपचार घेणारे वृद्ध