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<blockquote data-quote="vexheadroom" data-source="post: 4977887" data-attributes="member: 70924"><p>True; it&#039;s from other studies.&nbsp; This one is fairly well done. <a href="https://www.medrxiv.org/content/10.1101/2021.07.28.21261295v1.full.pdf" target="_blank">https://www.medrxiv.org/content/10.1101/2021.07.28.21261295v1.full.pdf</a>&nbsp;&nbsp; See the scatterplot of Ct values on page 16.&nbsp; &quot;Ct&quot; represents how many times they have to run the PCR test before they get a &quot;positive&quot; result, so the lower the Ct, the higher the virus load.&nbsp;&nbsp; Ct values are about the same through day 5, but the Ct values diverge pretty rapidly post day-5 of disease.&nbsp; Keep in mind Ct is geometric, not linear.&nbsp; &nbsp; My earlier statement about viral load being 3x worse for unvaccinated Delta, which was from an earlier study, isn&#039;t particularly accurate per this more recent study.&nbsp; &nbsp; Both vaccinated breakthrus and unvaccinated cases are likely equally contagious early on (before day 5); later on the vaccinated are going to be much less contagious.&nbsp;&nbsp; But I stand behind my earlier statement it is misinformation to claim vaccinated folks have a 251x higher load, as that was not a Delta to Delta comparison.&nbsp; [ATTACH=full]349593[/ATTACH]</p></blockquote><p></p>

[QUOTE="vexheadroom, post: 4977887, member: 70924"] True; it's from other studies. This one is fairly well done. [URL]https://www.medrxiv.org/content/10.1101/2021.07.28.21261295v1.full.pdf[/URL] See the scatterplot of Ct values on page 16. "Ct" represents how many times they have to run the PCR test before they get a "positive" result, so the lower the Ct, the higher the virus load. Ct values are about the same through day 5, but the Ct values diverge pretty rapidly post day-5 of disease. Keep in mind Ct is geometric, not linear. My earlier statement about viral load being 3x worse for unvaccinated Delta, which was from an earlier study, isn't particularly accurate per this more recent study. Both vaccinated breakthrus and unvaccinated cases are likely equally contagious early on (before day 5); later on the vaccinated are going to be much less contagious. But I stand behind my earlier statement it is misinformation to claim vaccinated folks have a 251x higher load, as that was not a Delta to Delta comparison. [ATTACH type="full"]349593[/ATTACH] [/QUOTE]

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