‘Up to 70 percent’ of adults in Denmark have had Covid-19 since November 2021

As many as 7 in 10 adults in Denmark have contracted Covid-19 since last November, a study by health authorities suggests.

covid test
As many as 7 in 10 adults in Denmark may have had Covid-19 since last November, File photo: Bo Amstrup/Ritzau Scanpix

Close to 70 percent of the adult population of Debt have had Covid-19 in the last four and a half months, the national infectious disease agency State Serum Institute (SSI) said in a report released on Monday.

The data is taken from studies of blood from donors during the period.

According to SSI, the latest round of analyses evidence a marked increase in late February and early March in the overall total number of people infected since November.

“The presence of (Covid-19) antibodies has again increased dramatically over the last two weeks. As fewer are now tested for Covid-19 with antigen or PCR tests, we are pleased to be able to follow trends in the incidence of past infection with this research in the coming weeks,” Professor Christian Erikstrup of Aarhus University hospital said in an SSI statement.

The blood donors whose samples were used in the study are adults between the ages of 17 and 72 years. In the week commencing February 28th, blood from 5,771 donors was tested for the presence of Covid-19 antibodies. 51 percent had antibodies, 17 percent more than when the same analysis was conducted two weeks prior.

A projection of those results to the current date suggests that up to 70 percent of the adult population will have been infected with Covid-19 since the beginning of last November, SSI writes.

The Covid-19 epidemic is currently declining in Denmark after the many cases over the winter, with a latest estimate of the reproduction rate or R-number for the virus yesterday of 0.7. That means 10 people with the coronavirus pass it on to an average of 7 others, causing the epidemic to recede overall.

7,401 new cases of the virus were registered from 35,629 PCR tests in the latest daily update on Tuesday, while the number of Covid patients on Danish ICU wards is now 27, around one third of the number at the beginning of 2022.

“When we look to the future, the many infections mean that the baseline immunity which we have built up with vaccinations will be strengthened. That explains the fall in cases we are seeing at the current time,” SSI director Henrik Ullum said in the statement.

“Although we must expect that coronavirus will continue to mutate over time, the higher immunity will help us as a society so we are not hit as hard,” Ullum said.

READ ALSO: Denmark’s Covid-19 contact tracing service to release 90 percent of staff

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Covid-19: Virus remains on downward trend in Denmark in latest report

The number of Covid-19 infections in Denmark is still declining, as has been the trend for some weeks.

Covid-19: Virus remains on downward trend in Denmark in latest report

In addition to confirmed cases, the number of PCR tests administered to check for the virus is also falling. Authorities recently announced that PCR testing capacity would be halved, before a strategy for testing next winter is announced later this year.

The continued falloff in cases was one of the trends noted in a new report from the infectious disease agency, State Serum Institute (SSI). The report is based on data from the most recent week.

During the period covered by the report, the number of new cases of Covid-19 fell by 18 percent, meaning 82 in 100,000 residents of Denmark tested positive for Covid-19.

The number of PCR tests fell by 14 percent during the same period, with around 7,000 tests administered each day.

“Transmission in the community is falling in general and across all age groups,” SSI medical head of department Rebecca Legarth told news wire Ritzau.

The decline in number of new recorded cases may be linked to the reduction in recorded number of hospital patients with a positive Covid test.

Last week saw the number of hospitalised people with Covid-19 fall by 23 percent. Not all people in hospital who have the virus are being treated for it, with their hospitalisation being for other reasons in many cases.

Denmark ended its Covid-19 restrictions in February and March, while health authorities also changed recommendations on when a PCR test should be taken.

In March, the Danish Health Authority changed its recommendations on when people with suspected Covid-19 should be tested for the coronavirus, with testing now only recommended if there is a “special medical reason” for doing so.