The color codes are currently determined by a working group of the Evaluation Cell (CELEVAL). The purpose of this cell is to inform the government about public health, so that appropriate measures can be taken.
CELEVAL takes the figures from ECDC (European Center for Disease Prevention and Control) into account in their advice. According to them, this increases the reliability and comparability of the figures. These figures are sent weekly to CELEVAL by Sciensano.
In addition, the figures are supplemented with additional information that CELEVAL receives from the Federal Public Service Foreign Affairs. This information may concern, for example, stricter measures in a specific country or region or a (regional) lockdown.
How do you proceed?
Based on this epidemiological information (ECDC figures) and diplomatic information (information from the FPS Foreign Affairs), CELEVAL will make an estimate of the contamination risk in certain countries or regions. The cumulative (total) number of new infections of COVID-19 in the past fourteen days per 100,000 inhabitants at national or regional level will be examined. This makes it possible that a certain region becomes a red zone, but the rest of the country does not.
CODE RED: According to CELEVAL, an area is red if the new number of infections in the past fourteen days is ten times higher than in Belgium. In concrete terms, this means: higher than 100 cases per 100,000 inhabitants in the past fourteen days. Areas where a lockdown has been imposed or where stricter and / or restrictive measures apply are also colored red.
CODE ORANGE: CELEVAL turns a country or an area orange if the number of new infections in the past fourteen days is twice as high as in Belgium but NOT ten times higher. That is to say: between 20 and 100 cases per 100,000 inhabitants in the past fourteen days.
CODE YELLOW: Countries or areas with a similar risk as Belgium: fewer than 20 cases per 100,000 inhabitants in the last fourteen days are colored yellow.