Anyone who tests positive for COVID-19 as well as close contacts should follow the CDC guidance for quarantining and isolation here: https://www.cdc.gov/coronavirus/2019-ncov/your-health/quarantine-isolation.html.  You may isolate or quarantine in your own home.  Note that per the CDC, travel on scheduled passenger airline flights or other public transportation into, from, or within the United States by people with COVID-19 and any close contacts who are not fully-vaccinated is prohibited until they have met CDC criteria for discontinuing isolation or quarantine. Close contacts who are fully vaccinated or recovered from COVID-19 in the past 90 days may travel on passenger airline flights, subject to the airline’s policies.