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Five percent of the population had antibodies against the crown in a Spanish study.
– Not good for Sweden, epidemiologist Tove Fall warned.
Now she is bribed by two other teachers.
Between April 27 and May 11, 90,000 Spaniards were evaluated. Preliminary results show that approximately five percent of the population has antibodies.
“Having one of the worst affected countries have such a low proportion of infected is not good for Sweden,” epidemiology professor Tove Fall of Uppsala University said in the SVT news on Wednesday.
For Aftonbladet, she developed her reasoning:
– It is surprising that the proportion of people exposed to covid-19 is not higher. If this is true, it is a sign that mortality is higher than expected and that if immunity is expected, the population is far away. If these numbers now hold, that is.
Being bribed by other teachers
In the Thursday night news, two other investigators toned down the Tove Falls findings.
Matti Sällberg, professor of biomedical analysis at the Karolinska Institute, and Sophia Hober, professor of molecular biology at KTH, had several objections:
✓ The five percent figure is a national average. In large cities it is higher.
✓ The figure shows what it looked like a few weeks ago, not what it looks like now.
✓ The rapid test used can lose up to 20 percent of all antibody cases.
– I’m not surprised. I don’t think it’s a warning sign at all, said Matti Sällberg.
– The important thing is to look in the big cities where the spread is more intense. According to the test, they are at 11.5 percent and we can spend at least 20 percent and maybe a little more. Therefore, they are likely to increase more than 15 percent in large cities, and then you can start to see that immunity has little effect unless the reproduction rate is too high.
Photo: CAROLINA BYRMO
Matti Sällberg, professor of biomedical analysis at the Karolinska Institute.
“The infection in Spain is local”
Sophia Hober noted that Spain had a “very long” blockade, which is believed to affect the figure.
– The infection in Spain is obviously very local. These tests show what happened two or three weeks ago. The difference then and now is probably quite large.
Sophia Hober’s research team at KTH is conducting antibody tests in Swedish hospitals. As Aftonbladet was able to reveal a few weeks ago, his test method stands out with 100 percent accuracy.
“In our test, we actually found antibodies in everyone who was sick, even those who said they had no symptoms,” said Sophia Hober in Aktuellt.
Photo: EBBA OLSSON WIKDAHL
Sophia Hober, professor of molecular biology at KTH.
So far, KTH has conducted 12,000 tests. In a month, he hopes to be able to tell us how it looks nationally. Between 10 and 20 percent have had antibodies to the virus in tests done so far.
– So most of them are in hospitals. On the other hand, we don’t know if hospitals are overrepresented or not.
“Corresponds to Stockholm”
Anders Björkman, a professor of infectious medicine at KI, notes that the average test date in Spanish was May 4 and that the positive cases were infected about a month ago.
It is not concerned that the antibody ratio was only five percent.
“It was a long-awaited result that today has probably doubled,” he tells SVT.
In Madrid, just over 11 percent had antibodies in the study. A doubling would mean at least 22 percent today.
– This is a sum that is quite in line with Stockholm, where we believe that just over 20 percent have been infected. It could even start to get closer to 30, Anders Björkman tells SVT.
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