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How do vaccinated people spread Delta? What the science says

nature.com

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Re: How do vaccinated people spread Delta? What the science says

#31

In vaccinated people who become infected . Since the vaccines cause fewer people to be infected, the unconditional viral load is lower.

Looking at countries with high vaccination rates but still dealing with uncontrolled outbreaks, the breakdown of the infected pretty closely mirrors the percentage vaccinated in the overall population.

If the vaccine provided you with strong protection against infection, you'd expect the numbers to be highly skewed towards the unvaccinated.

Re: How do vaccinated people spread Delta? What the science says

#32
post #2

> vaccinated people who become infected with Delta SARS-CoV-2 can carry as much virus in their nose as do unvaccinated people. This means that despite the protection offered by vaccines, a proportion of vaccinated people can pass on Delta, possibly aiding its rise. Which seems in line with I had speculated about earlier[1]. [1]: https://news.ycombinator.com/item?id=28003932

It looks like viral load diminishes faster which is a plus. However, I’d be willing to bet that almost all transmission happens when people are at their peak viral load. And so if peak viral loads are not differing between vaccinated and unvaccinated I’d guess we’re pretty much going to see unabated transmission amongst vaccinated.

> It looks like viral load diminishes faster which is a plus

Here's a graph from one such study that backs your claim

https://twitter.com/DrEricDing/status/1421874289398194187

Re: How do vaccinated people spread Delta? What the science says

#33
post #18

This title is editorialized to be misleading. It’s specifically the nose not in general. It does not mean the viral load in the lungs is the same. And studies indicate vaccinated ppl may stay infectious a shorter timespan.

Why is nobody recommending a highly saline nasal irrigation as a prophylactic? Or even a lower saline nasal irrigation with a very diluted amount of hydrogen peroxide???

> Why is nobody recommending a highly saline nasal irrigation as a prophylactic? Or even a lower saline nasal irrigation with a very diluted amount of hydrogen peroxide???

Is there any indication that any sort of nasal irrigation is effective at all?

Re: How do vaccinated people spread Delta? What the science says

#34
post #21

Earlier quoted context omitted.

Delta is apparently pretty risky to kids. And kids are at risk from long-COVID. Why they are doing in person school and fighting over mask mandates I'll never understand. Even if children suffered no ill effects, they'll act as disease vectors for adults and breakthrough cases.

What is your source? This is hearsay bullshit otherwise.

I have heard of this too, but never looked into it.

So I just looked into it. I found a couple of news articles [0][1]. [2] says:

> Kids remain, as they have been throughout the pandemic, at much lower risk of getting seriously sick with the coronavirus, especially compared with unvaccinated adults. But the recent rash of illnesses among the nation’s youngest is a sobering reminder of the COVID-19 adage that lower risk is not no risk. With so many children unable to access vaccines and their health contingent on those around them, parents and guardians must now navigate the reality that Delta represents a more serious danger to everyone—which means it’s a more serious danger to kids as well.

0: https://www.theguardian.com/australia-news/2021/jul/04/delta...

1: https://www.abc.net.au/news/2021-07-06/children-need-covid-p...

2: https://amp.theatlantic.com/amp/article/619712/

Re: How do vaccinated people spread Delta? What the science says

#35

Earlier quoted context omitted.

Unfortunately there is increasingly more data that shows that SARS-CoV-2 is not benign in children. For example this rather early analysis from 2020 included more than 2,000 children who got infected. 10.6% of infants under 1 year of age had severe or critical symptoms. All of these infants survived but a small number of infants in the United States have died following diagnosis with COVID-19 even then before Delta (…

People under the age of 1 is not even close to equaling “kids”. Come on.

Your point being what exactly?

Apart from more severe outcomes for babies than what we thought there are children that increasingly have to be treated for pneumonia at hospitals. Also long covid is on the rise. This has been widely reported recently.

https://www.nationalgeographic.com/science/article/long-covi...

https://www.google.com/amp/s/www.nytimes.com/2021/08/09/heal...

Re: How do vaccinated people spread Delta? What the science says

#36
The article is way more nuanced than the title.

That said, if the virus spreaded the same with the vaccine, the advantaged would be that the virus wouldn't have as much evolutionary pressure to change and become resistant. For example, it could make it harder for lambda variant, which might be symptomatic, to become prevalent

Re: How do vaccinated people spread Delta? What the science says

#37
post #18

This title is editorialized to be misleading. It’s specifically the nose not in general. It does not mean the viral load in the lungs is the same. And studies indicate vaccinated ppl may stay infectious a shorter timespan.

Why is nobody recommending a highly saline nasal irrigation as a prophylactic? Or even a lower saline nasal irrigation with a very diluted amount of hydrogen peroxide???

[deleted]

Re: How do vaccinated people spread Delta? What the science says

#38
post #21

Earlier quoted context omitted.

Delta is apparently pretty risky to kids. And kids are at risk from long-COVID. Why they are doing in person school and fighting over mask mandates I'll never understand. Even if children suffered no ill effects, they'll act as disease vectors for adults and breakthrough cases.

What is your source? This is hearsay bullshit otherwise.

> What is your source?

one source: https://www.theatlantic.com/health/archive/2021/08/delta-var...

The NYT says 1% of infected kids ends up in the hospital: https://www.nytimes.com/2021/08/09/health/coronavirus-childr... (Obviously, you need to recognize more kids are catching delta so the base is increasing.)

France tells us about kids facing long covid: https://www.france24.com/en/health/20210812-young-people-hit...

Re: How do vaccinated people spread Delta? What the science says

#39

Vaccines delivered to the arm deltoid muscle never promised mucosal immunity. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7733922/ > The mucosal immune system is the largest component of the entire immune system, having evolved to provide protection at the main sites of infectious threat: the mucosae. As SARS-CoV-2 initially infects the upper respiratory tract, its first interactions with the immune system must occu…

Thank you for that clear summary.

Re: How do vaccinated people spread Delta? What the science says

#40
post #29

Earlier quoted context omitted.

Why is nobody recommending a highly saline nasal irrigation as a prophylactic? Or even a lower saline nasal irrigation with a very diluted amount of hydrogen peroxide???

Probably because Trump suggested something similar...

Yeah, poor guy. He earned so much credibility with his no-nonsense, straight-shooting communication style full of poignant truths that it’s such a mystery why no one took him seriously on a subject in which he was so clearly well-versed and knowledgeable!
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