COVID-⁠19 Switzerland

Information on the current situation, as of 19 January 2022

Weekly comparisonWeek 52, starting 03.01.2022

Source: FOPH – Status: 19.01.2022, 07.45h

This report, published every Thursday morning, provides a detailed overview of the epidemiological situation and trends in Switzerland and the Principality of Liechtenstein.

Tests and share of positive tests

Week 51 starting 27.12.2021 and week 52 starting 03.01.2022

Status description

Tests and share of positive tests, Week 52 starting 03.01.2022

The status description provides a summary of the development of the COVID-⁠19 epidemic in Switzerland and the Principality of Liechtenstein for the last two calendar weeks. The descriptions are based on data received by the editorial deadline on Wednesday morning of week (12.01.2022) following the reporting week. The figures for the week shown are not yet complete at this time due to reporting delays – especially in the case of laboratory-⁠confirmed hospitalisations and laboratory-⁠confirmed deaths. The descriptions are not updated retrospectively. The figures in the descriptive texts may thus deviate slightly from the graphs, which are updated on a daily basis to account for any late, incorrect and duplicate entries that are reported for the week in question.

The current status description is only available in French, German and Italian at the moment.
Key figures at a glance In der Berichtswoche wurden 566 356 Tests (81 % PCR und 19 % Antigen-Schnelltests) gemeldet, was erneut einem Rekordwert seit dem Beginn der Epidemie entspricht. Die Anzahl aller gemeldeter Tests stieg über die Vor- und Berichtswoche signifikant an (wöchentlicher Trend: +40 % [+24%; +59 %]). Seit Woche 41/2021 hat die absolute Zahl der gemeldeten Tests stetig zugenommen.
Geographical distribution Die Inzidenzrate gemeldeter Tests lag in den Kantonen und im FL zwischen 3131 (AR) und 13 471 (UR) Tests pro 100 000 Einw. und Woche. Pro Person sind mehrere positive und negative Tests möglich.
Share of positive tests Schweizweit (inkl. FL) war der Anteil positiver PCR-Tests mit 38 % in der Berichtswoche erneut höher als in der Vorwoche (34 %). Der Anteil positiver Antigen-Schnelltests war mit 28 % in der Berichtswoche höher als in der Vorwoche (20 %). In 2 Kantonen lag der Anteil positiver PCR-Tests über 50 %. Der Anteil positiver Antigen-Schnelltests lag in 3 Kantonen über 40 %.
Demography Für die Berichtswoche wurden in den Altersklassen der 20- bis 39-Jährigen je über 100 000 Tests gemeldet. Dies beinhaltet PCR-Tests sowie Antigen-Schnelltests. Bezogen auf die Bevölkerungszahl wurden in der Altersklasse der 20- bis 29-Jährigen mit 11 933 pro 100 000 Einw. die meisten Tests gemeldet. Über die Vor- und Berichtswoche stieg die Anzahl gemeldeter Tests in den Altersklassen der unter 70-Jährigen signifikant an, während sie sich in den übrigen Altersklassen nicht signifikant veränderte. Das Medianalter der getesteten Personen lag in der Berichtswoche bei 34 Jahren und in der Vorwoche bei 36. Die Inzidenzrate der Tests war in der Berichtswoche bei Frauen um 17 % und in der Vorwoche um 20 % höher bei Frauen als bei Männern.
Share
covid19.admin.ch
Source: FOPH – Status: 12.01.2022, 08.01h

Geographical distribution

Number of tests, Weekly comparison of week 51 starting 27.12.2021 and week 52 starting 03.01.2022

The graph shows the number of tests performed in the selected weeks.
Switzerland and Liechtenstein
Per 100 000 inh.Absolute number of tests
Total until 09.01.2022 177 552,9915 463 720
Week 51 starting 27.12.2021 4698,78409 233
Week 52 starting 03.01.2022 6514,26567 350
Difference38,6%38,6%
Tests per 100 000 inhabitants
Week 51 starting 27.12.2021
Week 52 starting 03.01.2022
CH+FL (Week 51 starting 27.12.2021)
CH+FL (Week 52 starting 03.01.2022)

Tests per 100 000 inhabitants

Absolute number of tests
Week 51 starting 27.12.2021
Week 52 starting 03.01.2022

Tests

Share
covid19.admin.ch
Source: FOPH – Status: 19.01.2022, 07.45h

Share of positive tests

Share of positive tests, Weekly comparison of week 51 starting 27.12.2021 and week 52 starting 03.01.2022

The graph shows the share of positive tests in the selected weeks. Rapid antigen tests have only been carried out since week 45 starting 02.11.2020. There is no data available by canton group for the laboratory tests conducted before week 22 starting 25.05.2020.

On the basis of the extended testing strategy, more people without symptoms are being tested (for example in the course of mass testing). The results of such tests do not have to be reported. However, positive results do have to be confirmed with a PCR test. Both negative and positive results of these confirmatory PCR tests have to be reported. This pre-⁠⁠selection may result in an increase in the share of positive PCR tests by an indefinite amount.
Switzerland and Liechtenstein
PCR testsRapid antigen tests
Total until 09.01.202213,2%5,7%
Week 51 starting 27.12.2021 34,0%20,0%
Week 52 starting 03.01.2022 37,7%28,1%
Difference3,7pp8,1pp
PCR tests
Week 51 starting 27.12.2021
Week 52 starting 03.01.2022
CH+FL (Week 51 starting 27.12.2021)
CH+FL (Week 52 starting 03.01.2022)

Share of positive PCR tests

Rapid antigen tests
Week 51 starting 27.12.2021
Week 52 starting 03.01.2022
CH+FL (Week 51 starting 27.12.2021)
CH+FL (Week 52 starting 03.01.2022)

Share of positive rapid antigen tests

Share
covid19.admin.ch
Source: FOPH – Status: 19.01.2022, 07.45h

Demography

Number of tests, Weekly comparison of week 51 starting 27.12.2021 and week 52 starting 03.01.2022

The graph shows the number of tests performed in the selected weeks.
Distribution by age group
Tests per 100 000 inhabitants
Week 51 starting 27.12.2021
Week 52 starting 03.01.2022

Tests per 100 000 inhabitants

Absolute number of tests
Week 51 starting 27.12.2021
Week 52 starting 03.01.2022

Tests

Distribution by sex
Week 51 starting 27.12.2021
Week 52 starting 03.01.2022

Percentage share

Share
covid19.admin.ch
Source: FOPH – Status: 19.01.2022, 07.45h