How come i keep getting chest infections?

Recurrent chest infn: You may be getting recurrent chest infections because: 1. You smoke (quit cigarette/marijuana) 2. You have underlying lung ds (copd, asthma) ; are at higher risk 3. You are immunocompromised (taking prednisone/other medication that supress your immune systm or acquired ds) 4. High risk exposures for communicable diseases/ crowds. 5. You have not received vaccines (influenza, pneumococcus).