CDC’s new COVID-19 Quarantine and Isolation (Q&I) Calculator takes the stress out of figuring when, and for how long, people with COVID-19 and close contacts need to stay home, get tested, and wear a well-fitting mask. Developed in response to requests from partners and the public, the calculator provides important information about what precautions people with COVID-19 and their close contacts can take to protect loved ones and slow the spread of COVID-19 in their communities.