Study points to effectiveness of anti-Covid measures in 2020
A closed border crossing between Switzerland and Austria, March 18, 2020.
Keystone / Gian Ehrenzeller
A large-scale study by Zurich researchers shows the extent to which measures taken at the start of the pandemic in 2020 slowed the spread of the virus in the population.
This content was published on
1 minute
Keystone-SDA/dos
Português
pt
Estudo aponta eficácia das medidas anti-Covid em 2020
Researchers led by Tanja Stadler from the federal institute of technology ETH Zurich analysed over 11,000 sequenced coronavirus genomes for the study, published on Wednesday in the Science Translational Medicine journal.
The closure of Swiss borders to all but essential crossings (between March and May 2020) cut the numbers of imported infections by 90%, Stadler told the Keystone-SDA news agency.
This led to a successful decoupling of Switzerland’s domestic Covid-19 efforts from what was happening in countries around, the study said.
More
More
Coronavirus: the situation in Switzerland
This content was published on
An overview of the latest Covid-related information in the Alpine nation.
As for the lockdown measures, they managed to cut by half the length of time during which imported Covid-19 viruses circulated in the population, compared to after the lockdown was lifted. Contact tracing was also effective, cutting in half the average number of infections caused by a positive person.
However, from Autumn 2020, when numbers began to spike, the effectiveness of contact tracing disappeared, the study found.
Stadler said that while the epidemiological effectiveness of official measures in 2020 has already been shown by other studies, the advantage of the latest research project – one of the “biggest worldwide for 2020 in this field” – was the sheer amount of quantitative data analysed.
Popular Stories
More
Climate adaptation
Why Switzerland is among the ten fastest-warming countries in the world
This content was published on
Solar energy pioneer Raphaël Domjan and his team continued preparations for the altitude record attempt at 10,000 metres with the SolarStratos solar aircraft.
This content was published on
Cattle in the canton of Geneva and in the neighbouring region of Terre Sainte in the canton of Vaud are being vaccinated against the contagious viral skin nodule disease. The first cases of the animal disease were reported at the end of June in France, just outside Geneva.
Fewer attacks on Swiss ATMs but their future remains uncertain
This content was published on
Bank ATMs in Switzerland are less prone to attacks by criminals, but their future remains uncertain given the less active use of cash by the population.
This content was published on
A series of rockfalls occurred above the village of Brienz between 9 and 12 July. According to the municipality of Albula, the overall situation remains tense. Several people disregarded the ban on entering the area around the village.
This content was published on
Arosa Bergbahnen achieved the highest figure in its 95-year history in the 2024/25 financial year with net revenue of CHF 37 million. Arosa Lenzerheide was able to capitalise on strengths such as snow reliability and the size of the ski area in a long winter season, the company announced on Thursday.
This content was published on
Unknown perpetrators stole ceramic dental implants during a break-in at a company in Oensingen, northern Switzerland, on Tuesday night.
Euro 2025: Bern prepares for massive parade ahead of Switzerland-Spain game
This content was published on
The last Euro 2025 match to be played in Bern, the quarterfinal between Spain and Switzerland at 9pm on Friday, promises to be a great celebration of football.
Clariant faces further ethylene price-fixing claim
This content was published on
Swiss chemicals group Clariant is facing a further claim for damages in connection with ethylene price-fixing agreements.
This content was published on
The Grande Dixence dam in Lower Valais is closed to visitors due to a rockfall last weekend. The nearby hotel also had to temporarily suspend operations for safety reasons.
If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.
Read more
More
How Covid-19 has boosted digital learning in universities
This content was published on
Students in Switzerland have been returning to campus this semester without Covid restrictions. But online learning still has its place.
Covid research helped Swiss response, says Science Foundation
This content was published on
The National Science Foundation says its support to Covid-19 research in Switzerland has made an important contribution to tackling the pandemic.
You can find an overview of ongoing debates with our journalists here . Please join us!
If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.