Isolation is required for those individuals who have a confirmed COVID-19 infection or are suspected to have that infection, but do not require hospital stay. Then you are isolated at home (self-isolation) or at locations specified by the Department of Civil Protection and Emergency Management or by the health care system. While in isolation the staff of your primary care clinic will be in touch with you daily. It is safe for individuals who have a confirmed COVID-19 infection to stay together in isolation.
Isolation is a more severe resource than quarantine and requires stricter behavior than rules of quarantine state. Isolation because of COVID-19 will last until 10 days after fever resolves. If you have a confirmed COVID-19 infection but no fever you will have to give another sample for analysis after a certain time. If that sample is negative for the virus the isolation can be alleviated.
Other members of the household can be in quarantine in the same place if they do not want to leave the home, but should limit touching the one in isolation as much as possible, preferably keep a distance of a minimum 1 meter way from him/her. If more members of the household get sick while this situation progresses, it prolongs the quarantine and possible isolation.