Effects of Using E-Cigarettes on Lungs in People With HIV (HBS Ancillary)

Exclusion Criteria

• •a pacemaker or other implanted electronic device
• •pregnant women, prisoners, cognitively-impaired subjects.
• •For this ancillary, the experimental group must actively use at least one of the following: e-cigarettes, e-liquid vapes, burning leaf tobacco cigarettes, or inhaled burning leaf marijuana (cannabis). The control group will have no use of e-cigarettes or vape or active smoking in the past year.
• •Participants must be willing to archive data and biological samples for future use.
• •Exclusion from the ancillary are:
• •overt respiratory or oral cavity disease
• •acute illness in the past 4 weeks
• •active cancer
• •active weight loss program
• •any other medical, psychiatric or behavioral factors that, in the judgment of the PI may interfere with study participation or ability to follow the protocol