Background: The SARS-CoV-2 virus has caused a pandemic infection called COVID-19. It is a global threat to people, communities, and health systems. Researchers are concerned about the mental health effects of the pandemic. They want to learn more about how it is affecting people s alcohol use and problems, and how it may continue to affect them over time.

Objective: To study the impact of the COVID-19 pandemic on alcohol use and consequences in individuals across the spectrum of alcohol use and those with alcohol use disorder.

Eligibility: Participants who have been screened under the NIAAA Screening, Assessment and Management Protocol (14-AA-0181)

Design: Participants will complete a baseline survey by phone. It will ask about alcohol use, alcohol dependence, and stress. It covers 2 time periods: the 12 months before the pandemic started and the time since it started. Participants will get an ID code and a link to an online survey. They will complete the online survey within a week of the phone survey. Participants will complete a series of online surveys over 24 months. For the first year, surveys will be completed weekly for the first 4 weeks, then biweekly for the next 8 weeks, and then every 1-2 months for the rest of the year. For the second year, surveys will be completed every 6 months. Surveys will cover the following topics: * Alcohol use and its consequences * Other substance use * Stress * Impact of the COVID-19 pandemic * Pain * Physical health * Sleep * Quality of life. Because the course of the pandemic may change, the frequency of the surveys may change. Participation lasts 2 years.