For example, according to the calculator, someone who has come into contact with a COVID-19 patient, is up to date on their vaccinations and has not tested positive themselves do not need to stay home unless they develop symptoms.
But someone who is not vaccinated or not up to date with their vaccines is recommended to quarantine for five days -- starting the day after exposure -- to get tested at the end of the quarantine period and to wear a mask for 10 days as well. If the person has symptoms, they can end isolation after five days of no fever without the use of medication and they are recommended to wear a mask for 10 days around others.