According to an evaluation by researchers, herd immunity should have occurred in a city.
66.1 percent of people were infected with the corona virus.
According to researchers, the Brazilian city of Manaus is said to be approaching or even reaching herd immunity.
According to this, 66.1 percent of the population is said to have been infected with the corona virus *.
One immunologist described herd immunity as "a sign that the government has failed".
Manaus - Brazil's President
Jair Bolsonaro had downplayed
the
Sars-CoV-2 coronavirus
several times
as a "mild flu"
and attracted attention with statements like these.
Meanwhile,
Brazil
more than 4.6 million infected * since the beginning of the
pandemic
recorded, almost 140.00 people to
Covid-19
died
(source: Johns Hopkins University, 09/25/2020, 11:15)
.
Now researchers * are reporting in a
still unchecked evaluation
of the so-called
herd immunity
, which the population of the
Brazilian city of Manaus is
approaching or which it has possibly already reached.
Coronavirus in Brazil: herd immunity in Manaus?
- Stagnating case numbers
As the researchers write in their “preprint”, the coronavirus * in the Brazilian city of
Manaus,
which has just under 1.8 million inhabitants, is no longer
expected to
spread as rapidly as it did at the beginning of the
pandemic.
The reason for this is that it is estimated that up to two thirds of the population has already been infected.
The city recorded the first Covid-19 case on March 13.
By April, the number of new infections in Manaus had risen rapidly, while this number fell within the months of May to September.
The researchers conclude that the so-called
herd immunity.
Meanwhile, the number of coronavirus cases in Spain, which is in the second wave *, is increasing rapidly.
The Spanish islands are considered a risk area - wrongly?
Herd immunity
is a technical term that has been heard more and more frequently as the coronavirus pandemic progressed.
It is an indirect protection against a contagious disease that arises when a large part of the population is already
immune to the pathogen
- through
antibodies
developed
or the protection of a
vaccination
.
A herd immunity "to achieve naturally is dangerous because many people would die," said
Maria von Kerkhove
, the Covid-19 representative of the World Health Organization (WHO), at the end of August, as reported by the
German Medical Journal
, among others
.
WHO chief scientist
Soumya Swaminathan
said: "There is not a single infectious disease that has been brought under control by relying on natural immunity *."
Coronavirus: Preprint on herd immunity - 66.1 percent of the population in Manaus infected?
A team from the
Institute of Tropical Medicine at the University of Sao Paulo
analyzed
a total of more than a thousand samples from
blood donors
.
In the evaluation, 44 percent of the samples contained
antibodies
against the coronavirus.
The number of infections could be estimated at 66.1 percent, based on the fact that antibodies decrease over time.
But the study has some weaknesses.
On the one hand, samples from blood donors are
not representative
of the population, as the researchers themselves point out.
However, they describe their method of obtaining data as a "logistically feasible alternative".
On the other hand, the recorded
antibody
value is
more than double that from an antibody study that was
carried out
in
Manaus
at the end of May.
Assuming that the people of
Manaus have
actually achieved
herd immunity
, they paid a heavy price.
Based on projections, the “preprint” shows that 0.28 percent of those infected in the city died.
As reported by "Spiegel", among others, this corresponds to a Covid 19 death of 400 infected people and, compared to Munich, for example, an extremely high value.
According to official information from the city of Munich, a total of 223 of 1.5 million residents died
as
a result of an infection
(as of September 25, 2020).
Broken down, that would be a
Covid-19 death
of more than 6500 corona infected.
Meanwhile, outrageous details about the coronavirus outbreak in Hamm are coming to light.
Coronavirus: Herd immunity a "sign that the government is failing"
Immunologist
Florian Krammer
from Mount Sinau Hospital in New York spoke up on September 22nd.
Based on the path that
Brazil took
in the pandemic, he believes that herd immunity is possible there.
However, he took a clear stance: "Herd immunity from natural infections is
not a strategy
, but a sign that the government has failed to control an outbreak and has paid for it with lost lives." remains unclear for the time being.
* Merkur.de is part of the nationwide Ippen network (mbr)
Since I already see it going this way: I did not endorse community immunity as a strategy.
Community immunity via natural infection is not a strategy, its a sign that a government failed to control an outbreak and is paying for that lost in lives.
https://t.co/o0hxHHTaho
- Florian Krammer (@florian_krammer) September 22, 2020