Two studies in Sweden revealed that only 7 percent of the population had developed antibodies against COVID-19
Two studies performed in early summer by the Swedish health authorities reveal that only the 7 percent of the population had developed antibodies against him COVID-19, reported this Thursday the Public Health Agency.
The first of the studies, both nationwide and with results similar to others released months ago by the same agency, was carried out with 400 weekly tests of blood donors: in the second week of June, 7 percent had antibodies; 12 percent in Stockholm, the area most affected by the coronavirus in Sweden.
In the second study, from 1,200 weekly tests in outpatient clinics, it lowered the number of immunized to 6 percent.
In an investigation concentrated in Rinkeby-Kista, one of the suburbs of the capital most affected by the virus, the figure rose to 18 percent.
“We know that antibodies do not reflect everyone who suffers from a disease, you can have them for a short period but without appearing in the blood. We do not take it as a figure that shows the accumulated number of people who have passed the infection, “he said at a press conference. Karin Tegmark Wisell, head of department of this agency.
Tegmark Wisell stressed that “safe” conclusions cannot be drawn and that the data can vary greatly depending on the group of people studied, although he added that these investigations serve “like a piece of a puzzle” to try to understand the progress of infection in society.
Several investigations, such as one carried out a few weeks ago by the Karolinska Institute in Stockholm, have indicated that immunity may be greater, through the T lymphocytes (a type of white blood cells that are capable of destroying cells infected by the coronavirus) developed for the sick.
The possible search for the herd immunity It has been one of the most controversial aspects of the Swedish strategy against the coronavirus, based on many recommendations and some bans, a more lax approach that meant that schools, bars and restaurants were never closed.
The Swedish health authorities, whose mortality from COVID-19 has been much higher than that of the rest of the Nordic countries, have denied that group immunity is an objective, but an effect of a strategy focused on protecting groups at risk.
No COVID-19 Infected in Randomized Study
Sweden has registered 5,832 deaths from COVID-19, five times more than Denmark and eleven what Norway, but the numbers of deaths and infections have been declining in recent months and are now close to those of the rest of the Nordic countries.
Another study on the incidence of the coronavirus with 2,519 people chosen randomly at the national level released today by the Public Health Agency reveals that none had COVID-19, when a similar one from the end of April pointed to 0.9 percent.
“It is a random test, but we see a clear change over time and that the contagion in society is significantly lower, which is consistent with the data presented,” said Tegmark Wisell.
With information from .