An information sharing apparatus (management apparatus) for medical care data of a patient body includes a data uploader for classifying the medical care data into confidential data for a primary use in medical care of the patient body, and published data published for a secondary use different from the primary use, to store the confidential data and the published data in a storage medium. A problem event detector monitors the confidential data being added or updated, to check occurrence of a problem event of clinical exacerbation of the patient body. An activation processor checks occurrence of a flag signal for activating relocation of the confidential data to the published data upon the occurrence of the problem event. A relocation unit filters the confidential data at least partially to produce published data upon occurrence of the flag signal after the occurrence of the problem event.