Tracking the next pandemic: Avian Flu Talk |
Natural immunity from reinfection study. |
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A-I
V.I.P. Member Joined: August 15 2021 Status: Offline Points: 4935 |
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Posted: January 03 2022 at 10:26pm |
Naturally acquired immunity protects from severe COVID upon reinfection: statistical evidence from QuatarA recent study by Abu-Raddad et al., published in the formerly respectable New England Journal of Medicine [1], shows that acquired immunity against COVID works very much as it does with other respiratory viruses: it affords relative protection against reinfection and robust protection against severe disease or death. The study was conducted on a large cohort of approximately 260,000 unvaccinated persons,1 and it used sensible cut-off values for the diagnostic PCR test. It also has a careful statistical design to correct for various compounding factors, including comorbidity and changes in the mix of viral variants between the first and the second infection. Key findings:
The clear difference in disease severity between the first and the second infection suggests that at least the first PCR diagnosis was true-positive (and not false-positive) in most cases; otherwise, we should expect no difference in protective immunity between the two groups. Since the same PCR procedures were used throughout, we may assume that the second diagnosis was correct, too, even though additional verification using DNA sequencing would have been desirable. On the other hand, we note that even in the control group the infection fatality rate was only about 0.12%, which agrees with similar estimates by Brown [2] and Ioannidis et al. [3]. This overall remarkably low number can be ascribed to cross-immunity conferred by regular respiratory coronavirus strains [4,5]. Overall, the study by Abu-Raddad et al. confirms that natural immunity can be relied upon to protect the populace from severe recurrent COVID-19 disease, and that vaccination is unnecessary. |
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"Facts don't care about your feelings" I'M A UNVAXXED DEVIL so kiss my rebel ass.
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Dutch Josh
Adviser Group Joined: May 01 2013 Location: Arnhem-Netherla Status: Offline Points: 95677 |
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If immunity after infection would get us out of this pandemic it would show after two years...it does NOT in Brazil, India, Iran*....Herdimmunity against a coronavirus disease in animals simply does not work...(And vaccines may only buy us limited time...and do have risks !) . *There was news people in Iran getting infected 2x, 3x...Manaus-Brazil had several outbreaks... |
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We cannot solve our problems with the same thinking we used when we created them.
~Albert Einstein |
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A-I
V.I.P. Member Joined: August 15 2021 Status: Offline Points: 4935 |
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"Facts don't care about your feelings" I'M A UNVAXXED DEVIL so kiss my rebel ass.
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A-I
V.I.P. Member Joined: August 15 2021 Status: Offline Points: 4935 |
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And you can add the populations of Brazil and Iran together and it does not equal India. |
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"Facts don't care about your feelings" I'M A UNVAXXED DEVIL so kiss my rebel ass.
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cobber
Admin Group Joined: August 13 2014 Status: Offline Points: 6035 |
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Pfizer Scientists agree natural immunity better than vaccine |
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Littlesmile
V.I.P. Member Joined: July 18 2016 Location: Northern irelan Status: Offline Points: 1815 |
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I know many people here in Ni are putting all their bets on immunity as they have already been infected before. Most of these people have had vaccine and booster but will still side with immunity being the best. So both vax and unvax for here (most of them anyway lol) agree in this hope... To me it just seems like another slim hope... But we will be able to see here in coming weeks... |
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:-)
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