The chart showing the development over time is based on the date on which cases were reported. This is generally the date on which the test was conducted. With regard to deaths, it is the date on which the person died. Figures relating to the last two or three days are provisional as there is sometimes a delay in reporting.

Laboratories and medical practices transmit their figures on new cases to us and to the cantonal medical services simultaneously. We update the data daily at 8am. We then evaluate their plausibility and prepare them for publication, which causes a time lag. The figures published may therefore differ from those communicated by other sources.

Evaluations are limited to data sets for which details regarding age, sex and the canton of residence are complete. Data from the Principality of Liechtenstein are excluded. This accounts for the difference in the figures shown in the charts and the figures published above.

The chart shows the geographical distribution of confirmed COVID-19 cases over time.