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COVID-19 in Switzerland:

Summary in English:

Natural immunisation, vaccination and risk for COVID-19 by age in Switzerland.

Brian Martina,b, Eva Martin-Dienerb, Pirmin Schmida, Thomas Bührera, Andreas Stettbachera
a Military Health Service, Swiss Armed Forces; b Epidemiology, Biostatistics and Prevention Institute of the University of Zurich

In June 2021, the COVID-19 incidence in Switzerland continues to fall, and there is a growing body of evidence concerning the immune response to COVID-19 infections. At the same time, the national vaccination campaign is well underway. As long as no new variants of SARS-CoV-2 with relevant immune escape are emerging, it can be assumed that individuals who have recovered from COVID-19 are largely protected from re-infection for about 6 months, individuals who are fully vaccinated for at least 12 months. The data are updated weekly by the Swiss Federal Office of Public Health. They can be used to re-define the population at risk and to calculate age-specific incidences adjusted for natural immunisation, vaccination and both. The Swiss Armed Forces do so to inform the adjustment of protective measures, of the COVID-19 test strategy, of contact management and of the vaccination strategy. In the beginning of June 2021, unvaccinated individuals of the age of 80 years or more in Switzerland still had a 14 day incidence for COVID-19 higher than that of the general population. This fact indicates the continuing importance of vaccinations as  well as the protection of the unvaccinated. The quantification of COVID-19 risks is essential for counselling individual patients as well as for designing targeted measures to protect specific population groups, for example members of the Armed Forces. 

Full article in German in the Journal of the Swiss Medical Association (3 illustrations and 2 tables):

Martin B, Martin-Diener E, Schmid P, Bührer T, Stettbacher A. Durchseuchung, Durchimpfung und Risiko nach Alter für Covid-19. Schweiz Ärzteztg 2021; 102(2728): 915-918.

Back to other articles and current data on COVID-19 in Switzerland

Back to other articles and current data on COVID-19 in Switzerland