Abstract: Embodiments include apparatuses, methods, and systems of a public communication system including a sensor device, a badge device, a collector device, a server, a smartphone, for monitoring and communicating personal health information. A badge device includes a receiver, a storage unit, and a controller. The receiver is configured to receive, from a sensor device, measured health data of a wearer including a skin temperature of the wearer. The sensor device includes a temperature sensor to measure the skin temperature of the wearer. The storage unit is configured to store health information of the wearer related to the measured health data. The controller is configured to have the health information of the wearer displayed on a display device visible to public, or to initiate a communication to wirelessly transmit the health information of the wearer to another device. Other embodiments may also be described and claimed.