Delta variant variant

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Fun CH
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Re: Delta variant variant

Post by Fun CH »

mister_coffee wrote: Tue Oct 12, 2021 7:46 am This isn't happy news:

https://www.reviewjournal.com/news/poli ... n-2455634/

Although it might be interesting and helpful to know which vaccines are being broken through. Because they are quite different.
Do you have another source for the AY.26 Variant? That seems to be only story on this and after 4 days it seems the news would be all over this story.
What's so funny 'bout peace love and understanding--Nick Lowe
Can't talk to a man who don't want to understand--Carol King
Fun CH
Posts: 1440
Joined: Tue Jan 12, 2021 4:22 pm
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Re: Delta variant variant

Post by Fun CH »

That sounds simular to this story from Oct 13 2020, almost a year ago.

"Nevada man's COVID-19 reinfection, the first in the US, is 'yellow caution light' about risk of coronavirus"

https://www.usatoday.com/story/news/hea ... 965917002/


Nevada man's COVID-19 reinfection, the first in the US, is 'yellow caution light' about risk of coronavirus
Karen Weintraub
USA TODAY

"An otherwise healthy 25-year-old Nevada man is the first American confirmed to have caught COVID-19 twice, with the second infection worse than the first.

He has recovered, but his case raises questions about how long people are protected after being infected with the coronavirus that causes the disease, and potentially how protective a vaccine might be."

Now the CDC calls reinfection after having Covid, "rare".

From the CDC

"COVID-19
To maximize protection from the Delta variant and prevent possibly spreading it to others, get vaccinated as soon as you can and wear a mask indoors in public if you are in an area of substantial or high transmission.
Back to COVID-19 Home
Reinfection
Updated Aug. 6, 2021
Cases of reinfection with COVID-19 have been reported, but remain rare​.​

In general, reinfection means a person was infected (got sick) once, recovered, and then later became infected again. Based on what we know from similar viruses, some reinfections are expected. We are still learning more about COVID-19. Ongoing COVID-19 studies will help us understand:

How likely is reinfection
How often reinfection occurs
How soon after the first infection can reinfection take place
How severe are cases of reinfection
Who might be at higher risk for reinfection
What reinfection means for a person’s immunity
If a person is able to spread COVID-19 to other people when reinfected"
What's so funny 'bout peace love and understanding--Nick Lowe
Can't talk to a man who don't want to understand--Carol King
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mister_coffee
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Re: Delta variant variant

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Mutant of delta variant blamed for Nevada man’s rapid reinfection
A Mineral County man first infected with the delta variant tests positive 22 days for a new substrain of the virus known as AY.26.


The Nevada State Public Health Laboratory has identified a rare case of COVID-19 reinfection occurring just 22 days after the patient first tested positive.

The patient, an unvaccinated 31-year-old Mineral County man with no underlying health conditions, first tested positive for the delta variant and then, three weeks later, for a different strain that evolved from the delta variant, Mark Pandori, director of the lab at the University of Nevada, Reno’s School of Medicine, told the Review-Journal this week.

Infection from COVID-19 typically results in immunity from reinfection for a minimum of several months, according to the Centers for Disease Control and Prevention. Such rapid reinfection, especially in a young and healthy individual, could mean that the virus has mutated to a degree that makes it more resistant than previously seen to the protection afforded by past infection or from vaccination.

More such reinfections would first need to be identified to know if this is the case.

“We don’t know how widespread the phenomenon is right now, but it implies that the virus is definitely going to be fine in terms of staying in circulation in the population,” given how much the strain that caused the reinfection differs from the delta variant, he said.

The strain, a sublineage of delta known as AY.26, has 31 genetic differences from delta, including on the spike protein, the part of the virus targeted by vaccines, he said. It is this genetic variety that especially concerns him.

“My concern is that there’s a scientific rationale for this being indicative of a bigger problem,” said Pandori, whose lab in August 2020 reported the first known case of COVID-19 reinfection in North America.

That bigger problem is the possibility of increasing numbers of reinfections as well as so-called breakthrough cases in vaccinated individuals.

The Centers for Disease Control and Prevention did not respond to a request for comment other than to state that the request had been received.

Health officials have said that they expect that COVID-19 vaccines ultimately will have to be adjusted to protect against new strains of COVID-19, much as flu vaccines are recalibrated each year.

“If there were variants that could evade the protection, in some notable way, of our vaccines, and could spread reasonably fast — and if it were also reasonably contagious — then we would have to quickly create a specific vaccine against that variant,” said Dr. William Schaffner, a professor in the infectious disease division at Vanderbilt University.

However, at this point, health authorities stress that the current vaccines continue to protect against serious illness from the coronavirus.

Delta variants are rising

The Mineral County man who became reinfected did not require hospitalization and has recovered, said Christina Boyles, deputy health officer for the rural Nevada county, which has a population of about 4,500.

It was Boyles who first spotted the usual case.

“I speak with just about every single positive case that comes through Mineral County,” which has reported close to 700 cases since the beginning of the pandemic, she said. That figure includes cases in members of the Walker River Paiute Tribe.

What caught her attention was that the individual, after having tested positive on Aug. 16 and recovering, again tested positive on Sept. 7 using a rapid test, which typically picks up only high viral loads and active infections. The results were confirmed through a more sensitive PCR test. The man’s symptoms were more severe the second time around.

The state lab then compared genetic samples from the tests in August and September, determining that they were different strains and separate infections.

The state lab, which genetically analyzes or sequences a sampling of positive COVID-19 test results, has identified approximately 300 cases of AY.26 across the state, including in Southern Nevada, Pandori said.

The sublineages that have mutated from delta are becoming more prevalent. A report this week by the state lab shows that the delta variant remains the dominant strain in Nevada, accounting for 63 percent of the cases genetically analyzed in the past 30 days. Rounding out the top 5 most prevalent lineages are four mutants of delta — AY.4, AY.25, AY3 and AY13 — accounting for 29 percent of genetically sequenced cases.

“These sublineages — there’s more than just AY.26 —are really taking over,” he said. “The original delta variant is sort of descending rapidly in terms of its prevalence and giving way to its sublineages.

“And to me, this is going to be how the virus stays in the population until winter, when it’s probably gonna have a lot more of an opportunity to spread.”
:arrow: David Bonn :idea:
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mister_coffee
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Delta variant variant

Post by mister_coffee »

This isn't happy news:

https://www.reviewjournal.com/news/poli ... n-2455634/

Although it might be interesting and helpful to know which vaccines are being broken through. Because they are quite different.
:arrow: David Bonn :idea:
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