The SARS-CoV-2 pandemic challenged the authorities into taking measures that limit the spread of the virus in the community. TAMEC project (Advanced Community Approaches to Epidemic Management) developed a system that detects the contacts of patients infected with the SARS-CoV-2 virus and alerts them using mobile applications. It allows real-time analysis of confirmed patients and identified contacts, early detection of new outbreaks, and provides decision- making information to prevent viral transmission. The system uses its patent for homomorphic encryption, a method that allows to process and manipulate data in an encrypted format, without having access to the original data. Thus, the solution proposed in the TAMEC project fully respects the privacy rules of citizens imposed by the EU, using the concept of privacy preservation. Our solution offers the possibility to identify and validate a risk score that could become an extremely helpful tool in the stratification of COVID-19 patients. The TAMEC system is innovative in its simplicity and ability to facilitate the prevention of the spread of the SARS-CoV-2 virus in the community
The continuously increasing number of medical investigations using radiological methods imposes the strong necessity of informing patients about benefits and risks regarding radiation absorbed doses. Tracking the radiation doses absorbed by patients must be a future challenge of any medical system. The effective doses received by patients in many types of medical investigations must be calculated, transformed, recorded and cumulated. Doctors and patients must be very responsible in prescribing or demanding new radiological medical investigations. Radiological international legislation, guidelines, programmers and practice supervised by standards, commissions on radiology protection must include new specific measures for patients’ cumulated doses. A pilot Romanian project had tried to accomplish some of these tasks. INTRODUCTION Radiation is commonly associated with nuclear accidents or modern irradiative artificial sources such as: mobile phones, great antennas, satellites, food irradiation, and radioactive building materials. Generally, radiation is associated with all kind of human activities. As a huge surprise, in fact, radiation is quite a natural phenomenon in our lives. There are many radioactive substances in air, water and soil that are called natural background radiation. During a long airplane flight one can also receive an important radiation dose. Typically doses from natural sources are measured in mSv. The Sievert (Sv) is the International System of Units (SI) derived unit for radiation dose. There are many other different units for absorbed radiation and transformations can be made in order to compare them. A recent United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) publication [1] estimates worldwide distribution of radiation exposure: • 13% from cosmic sources • 16% from soil • 9% from food • 20% from medical investigations • 42% from radon sources Radon-222 is a radionuclide in the form of a gas that normally emanates from the soil. Radon is a colorless, 1 Polytechnic University, Bucharest 2 Carol Davila Central University Emergency Military Hospital, Bucharest 3 S.C. CERTSIGN S.A. Bucharest 5
