This application is only for people who are identified by health personnel that they have a high risk of being infected by a dangerous communicable disease. ** Excluding COVID-19 ** DDC-Care is an application for monitoring people who may be infected by a dangerous communicable disease. A user has to fill his/her health information in a daily self-screening form for a certain period of time specified by health personnel to assess his/her risk of dangerous communicable disease infection. The inf