| 摘要 |
A method of recording close contacts for disease control, the method including the steps of using a device to transmit identity and date/time of contact details to a similar device for each close contact. Identity details of the similar device are received and store for at least predetermined time for each close contact. At the expiry of the predetermined time the received identity details may be overwritten if the memory is full. The stored identity details are used to determine identities of persons with whom close contact had been made within the predetermined time. The device has embedded therein a semiconductor processor device, a memory device, a clock and a transmitter/receiver with an antenna.
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