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Elapsed time since BNT162b2 vaccine and risk of SARS-CoV-2 infection in a large cohort [“boosters” coming]
medrxiv ^ | 8/5/21 | Various scientists

Posted on 08/07/2021 8:55:43 AM PDT by ReaganGeneration2

...Results. The cohort included 33,993 fully vaccinated adults, 49% women, with a mean age of 47 years (SD, 17 years), who received an RT-PCR test for SARS-CoV-2 during the study period. The median time between the second dose of the vaccine and the RT-PCR test was 146 days, interquartile range [121-167] days. 608 (1.8%) patients had positive test results. There was a significantly higher rate of positive results among patients who received their second vaccine dose at least 146 days before the RT-PCR test compared to patients who have received their vaccine less than 146 days before: odds ratio for infection was 3.00 for patients aged over 60 (95% CI 1.86-5.11); 2.29 for patients aged between 40 and 59 (95% CI 1.67-3.17); and 1.74 for patients aged between 18 and 39 (95% CI 1.27-2.37); P<0.001 in each age group.

Conclusions and Relevance. In this large population study of patients tested for SARS-CoV-2 by RT-PCR following two doses of mRNA BNT162b2 vaccine, we observe a significant increase of the risk of infection in individuals who received their last vaccine dose since at least 146 days ago, particularly among patients older than 60...

(Excerpt) Read more at medrxiv.org ...


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To: catnipman

The more complicated and fragmented the tracking system the easier it would be to get away with a counterfeit.


21 posted on 08/07/2021 11:36:58 AM PDT by steve86 (Prophecies of Maelmhaedhoc O'Morgair (Latin form: Malachy))
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To: Renfrew

No worries.


22 posted on 08/07/2021 11:37:31 AM PDT by Bearshouse
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To: Renfrew
07/21/2021: Lab Alert: Changes to CDC RT-PCR for SARS-CoV-2 Testing

CDC Withdraws Request for PCR Testing EUA

CDC urges labs to use COVID tests that can differentiate from flu

23 posted on 08/07/2021 12:18:39 PM PDT by mass55th ("Courage is being scared to death, but saddling up anyway." ~~ John Wayne )
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To: BenLurkin

“97% did not become infected“

Yes, 3% got infected. Less than the 162 out of 18500 placebos that caught covid in the Pfizer trials. That’s 0.88%.


24 posted on 08/07/2021 12:53:24 PM PDT by ReaganGeneration2
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