Herd Immunity to COVID-19 and Pre-existing Immune Responses

By Nic Lewis – Re-Blogged From WUWT

I showed in my May 10th article Why herd immunity to COVID-19 is reached much earlier than thought that inhomogeneity within a population in the susceptibility and in the social-connectivity related infectivity of individuals would reduce, in my view probably very substantially, the herd immunity threshold (HIT), beyond which an epidemic goes into retreat. I opined, based on my modelling, that the HIT probably lay somewhere between 7% and 24%, and that evidence from Stockholm County suggested it was around 17% there, and had been reached.

I then showed in a July 27th update article[1] that mounting evidence supported my reasoning.

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The data is in — stop the panic and end the total isolation

The tragedy of the COVID-19 pandemic appears to be entering the containment phase. Tens of thousands of Americans have died, and Americans are now desperate for sensible policymakers who have the courage to ignore the panic and rely on facts. Leaders must examine accumulated data to see what has actually happened, rather than keep emphasizing hypothetical projections; combine that empirical evidence with fundamental principles of biology established for decades; and then thoughtfully restore the country to function.

Five key facts are being ignored by those calling for continuing the near-total lockdown.

Fact 1: The overwhelming majority of people do not have any significant risk of dying from COVID-19.

The recent Stanford University antibody study now estimates that the fatality rate if infected is likely 0.1 to 0.2 percent, a risk far lower than previous World Health Organization estimates that were 20 to 30 times higher and that motivated isolation policies.

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Unintended Consequences? Polio and COVID 19

By Jim Steele – Re-Blogged From WUWT

We must consider the unintended medical consequences of societal lockdowns hoping to prevent the spread of COVID 19. Unintended consequences are exemplified by past polio epidemics that left some of my classmates crippled. For the most severely afflicted, a polio infection required, not a ventilator, but an iron lung for children to breathe. The polio virus had likely been around for thousands of years, but in the 20th century severe epidemics began. Why?

In 1992 Dr Krause from the National Institute of Health published, “There are numerous examples of old viruses that have caused new epidemics as a consequence of changes in human practices and social behavior. Epidemic poliomyelitis emerged in the first half of this century when modern sanitation delayed exposure of the virus until adolescence or adulthood, at which time it produced infection in the central nervous system and severe paralysis. Before the introduction of modern sanitation, polio infection was acquired during infancy, at which time it seldom caused paralysis but provided lifelong immunity against subsequent polio infection and paralysis in later life. [emphasis mine] Thus, the sanitation and hygiene that helped prevent typhoid epidemics in an earlier era fostered the paralytic polio epidemic.”

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“Immunity Passports” Could Help Society Get Back to Normal

By Victor Tangermann – Re-Blogged From Futurism
Passport holders could be allowed to get back to work.

German researchers are suggesting that “immunity passports” could be given out to workers who have already caught the coronavirus — meaning they’re now immune — in a bid to get them back to work and help speed up the return to normal society.

A mass study being planned by Germany’s public health body and a number of research groups and hospitals, The Guardian reports, will involve testing blood samples from 100,000 people for coronavirus antibodies, starting in mid-April.

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