INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND RECORDING MEDIUM

An information processing system includes a first information processing apparatus, and a plurality of second information processing apparatuses. The first information processing apparatus acquires movement history information on an infected person with a predetermined infectious disease, identifies, based on the movement history information, a first place that the infected person visited and a first visit date and time, and notifies the second information processing apparatus associated with the first place of information about the first place and the first visit date and time. Each second information processing apparatus identifies, based on visit history information including a visit date and time of the predetermined place by users who are associated with the predetermined place, a first user who visited the first place on the first visit date and time, and notify the first user of possibility of being infected with the predetermined infectious disease.