Eligibility Details:  
        Inclusion Criteria:
        Group 1.1 - HEALTHY VOLUNTEER RESEARCH SUBJECTS (Healthy as defined by those not having
        lung disease and inclusive of: all races, ethnicities, sex, HIV status, smoking status and
        multiple birth status, etc., within the general population. Smoking status is defined for
        individuals that may use any of the following: cigarettes, pipes, E-cigarettes, waterpipe,
        shisha, etc.):
          -  All study subjects should be able to provide informed consent
          -  Males or females ages 18 years and older
          -  Must provide HIV informed consent
        Group 1.2 - VOLUNTEER RESEARCH SUBJECTS WITH LUNG DISEASE (As defined by those having lung
        disease or symptoms of lung disease and inclusive of: all races, ethnicities, sex, HIV
        status, smoking status and multiple birth status, etc., within the general population.
        Smoking status is defined for individuals that may use any of the following: cigarettes,
        pipes, E-cigarettes, waterpipe, shisha, etc.):
          -  Must provide informed consent
          -  Males and females age 18 years and older
          -  Lung disease proven by at least one of the following: symptoms consistent with
             pulmonary disease; (2) chest X-rays consistent with lung disease; (3) pulmonary
             function tests consistent with lung disease; (4) lung biopsy consistent with lung
             disease; (5) family history of lung disease; and/or (6) diseases of organs with known
             association with lung disease
          -  Must provide HIV informed consent
        Additional Inclusion criteria for CF subjects:
        • All CF subjects will be homozygous for the ΔF508 mutation, with mild-moderate lung
        disease as defined by FEV1 ≥ 50%
        Group 2 - WCMC/NYPH CLINICAL PATIENTS
          -  Must provide informed consent
          -  Males and females, age 18 years and older
          -  Lung disease proven by at least one of the following: (1) symptoms consistent with
             pulmonary disease; (2) chest X-rays consistent with lung disease; (3) pulmonary
             function tests consistent with lung disease; (4) lung biopsy consistent with lung
             disease; (5) family history of lung disease; and (6) diseases of organs with known
             association with lung disease
        Group 3 - PCNY CLINICAL PATIENTS VOLUNTEER RESEARCH SUBJECTS WITH LUNG DISEASE
          -  Must provide informed consent
          -  Males and females, age 18 years and older
          -  Lung disease proven by at least one of the following: symptoms consistent with
             pulmonary disease; (2) chest X-rays consistent with lung disease; (3) pulmonary
             function tests consistent with lung disease; (4) lung biopsy consistent with lung
             disease; (5) family history of lung disease; and (6) diseases of organs with known
             association with lung disease
        Exclusion Criteria:
        Group 1.1 - HEALTHY VOLUNTEER RESEARCH SUBJECTS
          -  Individuals not deemed in good overall health by the investigator during screening
             visits and/or prior to the bronchoscopy will not be accepted into the study.
          -  Individuals with history of chronic lung disease, including asthma or with recurrent
             or recent (within three months) acute pulmonary disease will not be accepted into the
             study.
          -  Individuals with allergies to atropine or any local anesthetic will not be accepted
             into the study.
          -  Individuals with allergies to pilocarpine, isoproterenol, terbutaline, atropine or
             aminophylline will not be accepted into the study.
          -  Females who are pregnant or nursing will not be accepted into the study
        Group 1.2 - VOLUNTEER RESEARCH SUBJECTS WITH LUNG DISEASE
          -  Any history of allergies to xylocaine, lidocaine, versed, valium, atropine,
             pilocarpine, isoproterenol, terbutaline, aminophylline, or any local anesthetic will
             not be included in the study
          -  Individuals deemed unable to complete the bronchoscopy due to health concerns by the
             investigator.
          -  Females who are pregnant or nursing
        Additional Exclusion criteria for CF subjects:
          -  Experienced a recent (≤ 8 weeks) pulmonary exacerbation of their disease
        Group 2 - WCMC/NYPH CLINICAL PATIENTS
          -  Patient refuses consent
        Group 3 - PCNY CLINICAL PATIENTS
          -  Patient refuses consent