Respiratory Illness and Isolation
The CDC recommends that people with respiratory illnesses (such as COVID-19, influenza, respiratory syncytial virus) may resume daily activities if they have been fever-free for at least 24 hours without the aid of medications and if their symptoms are improving. The CDC urges those who end isolation to limit close contact with others, wear well-fitted masks, improve indoor air quality, and practice good hygiene, like washing hands and covering coughs and sneezes.
More information on can be found on the CDC's preventing spread of respiratory viruses page.