The group of experts explained the reasons in a letter

The group of experts explained the reasons in a letter

In many countries, restrictive measures against the Covid-19 with the aim of obtaining theherd immunity. It is a policy that healthy people should become infected in order to develop antibodies, while elderly or sick people should be safeguarded. However, this presents significant risks. These were illustrated by some experts in a letter.


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Covid, Trump and herd immunity: “Protect only the vulnerable”

The letter on herd immunity

The open letter, written by a group of 80 doctors, biologists, psychiatrists, psychologists and health policy experts, is called John Snow Memorandum, was published in the magazine The Lancet. The gist of the long speech is clear: theherd immunity it is not the best way to counter the Covid-19.

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Pursue herd immunity – it is read – It would be a dangerous mistake e immoral. It is a fallacious and costly process in terms of human and economic lives and would not stop the virus, which would return several times to new waves repeated. In fact, there is increasing evidence that post-infection immunity to Sars-CoV-2 lasts only a few months from infection, then disappears and the risk of reinfection is not remote.

Proponents of this system suggest that this will ultimately protect the vulnerable. This is a dangerous mistake not supported by scientific evidence. Any pandemic management strategy based on natural infection immunity for Covid-19 is defective. In addition to human cost this would impact the workforce as a whole and overwhelm the capacity of health systems to provide intensive and routine care. Such a strategy would not end the pandemic but would result in recurring epidemics, as in the case of numerous infectious diseases before the advent of vaccination“.

The various countries, according to experts, should instead continue to implement restrictive measures and possibly new lockdowns. Only by countering the spread of infections, in fact, is it possible to counteract the Covid-19 before a vaccine is found.

The transmission – go on – can be mitigated through the physical distancing, the use of protection devices for the face, thehygiene hands and airways, avoiding crowds and poorly ventilated spaces. Also test quick, tracking of contacts e isolation positives are fundamental aspects for controlling the transmission. L’WHO has supported these measures since the start of the pandemic. THE lockdownwhile they have had a destructive impact on mental and physical health and damaged the economy, they have so far been the only solution.

It is not clear how long the protective immunity lasts and how others coronavirus seasonal, Sars-Cov-2 is able to reinfect people who have already had the disease. There uncontrolled transmission in young people – conclude – risks leading to a major spread of the virus with a mortality throughout the population“.

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