Inclusion Criteria:  • Reside in the study area (12 villages in Bathinda District of Punjab, India). "Residence" will be defined as sleeping in a house in that village on a typical weeknight.  ≥30 years old. Age will be confirmed by directly viewing a government-issued document with the individual's date of birth. Willing to provide informed consent.  Exclusion Criteria:  • Plan to move permanently out of the study area in the next 12 months.  Pregnant (women via self-report). Persons who are bedridden or mentally challenged. Persons who speak a language other than Punjabi, Hindi, or English