Germany plans mass study to track immunity to coronavirus

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Germany plans mass study to track immunity to coronavirus
Testing for the coronavirus at Berlin's Charité hospital. Photo: DPA

German researchers plan to regularly test over 100,000 people to see if they have overcome infection with COVID-19 to track its spread, an institute behind the plan confirmed Friday.


A spokeswoman for Brunswick's Helmholtz Institute for Infectious Disease Research confirmed a report in news weekly Der Spiegel that large-scale testing for coronavirus antibodies could start in April if researchers are given the green light.

"You could give immune people something similar to a vaccination certificate that could allow them exceptions from limits on their activities," Helmholtz Institute epidemiologist Gerard Krause, who is tipped to lead the study, told Der Spiegel.

German schools, non-essential shops and restaurants are now closed and public gatherings of more than two people banned.

Krause would work institutions on the front line of Germany's response to the virus, including disease control authority the Robert Koch Institute (RKI) and Berlin's Charité hospital.

By Friday, the RKI reported over 42,000 confirmed coronavirus infections in Europe's most populous nation, and 253 deaths.

"Results from the study will make it easier to decide when schools could be reopened and large events permitted," Der Spiegel wrote.

It will also allow them to determine a more accurate mortality rate from the virus.

The first results are expected in late April.

But even if the study is approved, initial readings might not be completely reliable.

Tests currently available can show false positives for coronavirus antibodies, as 90 percent of adults already have immunity against common, harmless viruses from the same family.

"Researchers hope a more precise testing process will be available in two to three months," Spiegel reported.

Then it could be more reliably determined whether someone is still at risk from the virus and can infect others or not.


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