Public health departments reported the cases to CDC via a standardized case report form to gather information (yes, no, or unknown) about the following health conditions and potential risk factors: chronic lung disease (including asthma, chronic obstructive pulmonary disease [COPD] and emphysema); diabetes mellitus; cardiovascular disease; chronic kidney disease; chronic liver disease; immunodeficiency; a neurological disorder, neurodevelopmental disorder or intellectual disability; pregnancy ; smoking; a history of smoking; or another chronic illness.
Idara za afya ya umma ziliripoti visa kwa CDC kwa kutumia fomu ya kawaida ya kuripoti visa ambayo ilinakili taarifa (ndiyo, la au haijulikani) kuhusu hali zifuatazo na vigezo vinavyoweza kuwa hatari: ugonjwa sugu wa mapafu (ikiwa ni pamoja na matatizo ya kupumua, ugonjwa sugu wa kufungwa kwa mishipa ya damu [CPD] na kukatika pumu); kisukari; ugonjwa wa moyo; ugonjwa sugu wa njia ya mkojo; ugonjwa sugu wa maini; hali ya kuingiliwa kwa kinga ya mwili; matatizo ya kiakili, ukuaji wa kiakili au ulemavu wa kiakili; ujauzito; hali ya sasa ya kutumia sigara; hali ya zamani ya kutumia sigara au magonjwa mengine sugu.