Rapid antigen test misses many symptom-free Covid carriers
The rapid antigen test approved in Switzerland has performed badly in a direct comparison with PCR tests. Among 141 people infected with Covid-19, it detected only two out of three infections.
The research team determined the diagnostic accuracy of Roche’s rapid antigen test in a clinical setting for the first time by evaluating samples taken by specially trained experts using both test methods.
More
More
Rapid Covid-19 tests could offer a path back to normal
This content was published on
Could rapid antigen tests like the one Roche plans to launch this month become the norm?
In the sample of 1,465 tests, the PCR test showed that 141 people (9.6%) were infected with Covid-19, while the rapid antigen test detected 95 infections (6.4%). In practice, it could be assumed that the results are even worse, especially when taking samples, the statement said.
“Widespread application in such a setting might lead to a considerable number of individuals falsely classified as SARS-CoV-2 negative,” the study concluded.
Missed cases
Co-author Franziska Suter-Riniker from the University of Bern added that antigen tests work better with a high viral load than with a low viral load. Thus, highly infectious people would also be more likely to test positive.
More
More
Coronavirus: the situation in Switzerland
This content was published on
An overview of the latest Covid-related information in the Alpine nation.
The researchers wrote that currently an estimated 130,000 rapid tests are carried out per week in Switzerland. With about 18% coming back positive, some 23,400 would be correctly identified as positive, but 12,400 infected people would be missed.
“There is thus a potential risk that antigen tests will make the pandemic worse instead of slowing it down,” said study leader Michael Nagler from the Insel hospital. “The rapid antigen tests available today should therefore only be used with reservations as part of the Covid-19 measures.”
More
Archived
What’s the best way to convince people to get the Covid vaccine?
Do positive incentives like give-aways work? Or should more coercive measures like in France be taken?
Swiss football boss wants crackdown on individual hooligans
This content was published on
The head of the Swiss Football League says he prefers a harsher approach to individual hooligans rather than collective punishment measures affecting all fans.
Amherd: Council of Europe is ‘as urgently needed as ever’
This content was published on
The Swiss government emphasised on Sunday the vital role of the Strasbourg-based Council of Europe, 75 years after it was founded.
Swiss minister: Italy will back Switzerland in EU talks
This content was published on
Bern can count on the backing of Italy as it re-enters talks with the European Union on future relations, Viola Amherd says.
Student protestors at University of Lausanne continue pro-Palestine sit-in
This content was published on
Since Thursday, a hall on campus has been occupied by students calling for a boycott of Israeli academic institutions and a ceasefire in Gaza.
This content was published on
Swiss public broadcasters RTS and SRF are drastically reducing their communications via the social network X (formerly Twitter).
Israel: president of Swiss universities rejects academic boycott
This content was published on
Luciana Vaccaro, president of Swissuniversities, the umbrella group of Swiss universities, is not in favour of an academic boycott of Israeli universities.
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
‘You can’t test the virus away’
This content was published on
As Switzerland embarks on a major test offensive, Geneva virologist Isabella Eckerle cautions against treating it as a silver bullet.
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.