Friday, January 15, 2021

Study: In-School Transmission of C19 Very Rare

Key finding: Kids don't transmit virus to adults in schools

 The American Academy of Pediatrics reports transmission of the Covid-19 virus rarely occurred in North Carolina schools.  The peer-reviewed study was conducted by researchers at Duke University and the University of North Carolina.  Some highlights of the study are:

*Hypothesis:  in-person instruction, if accompanied by assiduous adherence to masking, distancing, and hand hygiene,
would not result in substantial risk of SARS-CoV-2 spread within schools for children or staff.

*  90,000 students studied in 11 school districts that provided instruction for at least nine weeks.  773 Covid-19 infections occurred in this population. Contact tracing determined another 32 infections "were acquired within schools." 

* "No instances of child-to-adult transmission of SARS-CoV-2 were reported within schools."

* Students were required to mask up, use social spacing, and wash hands.  

* Overall rate for state during period studied was 1-2 cases per 100,000 residents although it was slightly higher in the counties that had the school districts studied. 

* 773 Covid-19 infections but only 32 cases of secondary transmission

* You want raw data? Here is some raw data: 

6 Districts: 0 secondary infections

2 Districts: 1 secondary infection

3 districts: Multiple secondary infections

Pre-K: 6 cases of secondary infection

Elementary school: 11 secondary infections

Middle schools: 6 secondary infections

High schools: 5 secondary infections

K-12 schools: 4 secondary infections. 

Child to adult within school transmission: ZERO

* 2 clusters occurred in special needs environment.  One involved children eating together in close proximity. 

The key finding is: 

 On average, NC residents with SARS-CoV-2 infected slightly more than 1 other individual during these 9 weeks.¹² If secondary transmission were as common in schools  as in the community, we would anticipate 800–900 secondary infections within schools; however, only 32 within-school SARS-CoV-2 transmissions occurred.

This finding is similar to New York City where the rates of Covid-19 infections were double what they are in the public schools.  It is also interesting that North Carolina private schools had more clusters than all public schools. (p.14).  Most of the secondary transmissions occurred among special needs children and kids lacking face coverings.  

Bottom line: Schools are safe harbors for kids even during widespread community transmission of Covid-19.  

 Kingfish note: More evidence the kids should be back in school.  Got that, Canton?  If Little Lord Lumumba wants to cut down on the infection of kids, he should urge JPS to reopen the schools in full.


14 comments:

Anonymous said...

key words: assiduous adherence to masking, distancing, and hand hygiene

actually, we could just about have this whole thing behind us if EVERYONE did those three things..even for a month or two. we really never did it, not all of us. people don't do it now..masks under noses, no mask, not washing hands...

there was ZERO reason covid-19 should have been this big to-do. but we are going to be dealing with it for years thanks to the anti-mask and anti-vax crowd...

Anonymous said...

And teachers were in the 2nd phase of the vaccine rollout ahead of people 65 and older, people with underlying health conditions, and put on the same plane as people 75+ and first responders. Sorry teachers, but you should be down the list as a whole.

Anonymous said...

Combining this with the UK studies, it's clear that proper ventilation is key. You have got to turnover room air with non-ozone producing HEPA air purifiers and get outside air into classrooms (fresh air dampers, windows, etc.). If you combine this with masks, handwashing and distancing, transmission is very low, even with more contagious variants.

Anonymous said...

Except they do....medical doctor between vaccine shots got covid from his kids.

He’s doing well.

Anonymous said...

In Mississippi, teachers are NOT ahead of people 65+, those with health conditions, etc. I disagree with 11:47 on whether they should be, but the fact is they are not.

Anonymous said...

I can tell you now that a lot of these kids in Rankin County sure as shit aren't wearing masks properly. Then again their parents probably still think it's a Democratic hoax.

Anonymous said...

11:38 It wouldn't be behind us, but it would be well under control. Too many Mississippians thought the "two weeks to slow the spread" was all that had to be done and their contribution stopped immediately afterward. Mitigation was always to be expected in order to allow businesses to open back up after the lockdown. Only an idiot would think a two week lockdown would completely eliminate a contagious disease.

Unfortunately a significant part of the population looked at that as tyranny and deliberately refused to do anything to help. You also had the "death to the olds" crowd saying the national policy should be to maximize the number of people who got sick as long as you kept hospitals full, but not overwhelmed. And no, that's not hyperbole. There were posters literally calling for hospitals to be continuously pushed to their limit to get herd immunity as quickly as possible (I'm looking at you Team Chaos) no matter how many people died even as treatments and vaccines were under development. "We're all going to get it anyway so get it over as quick as possible" was the lie they liked to promote, and that sounds good to people who can't think more than a week ahead in their lives.

Schools show that mitigation works. Not 100%, but it does cut down on the transmission significantly. It's a shame the public doesn't follow that too or we would not have one of the highest mortality rates in the entire world.

Anonymous said...

Well, KF, if all kids would go back to school, then proper distancing is not possible anymore. Masks? They wear them only reluctantly. Hand washing? Even most adults didn’t do it before the pandemic.

Yeah, teachers got kicked off the vaccination list here in MS.

Kingfish said...

Anti-vaxx crowd? It's been on both sides. I guess you ignored all those flyers from um, urban clubs that advertised big parties, some even called "FCovid19" parties. You know, superspreader events? Or the big giant block parties in Jackson for streetball tournaments or whatever they were.

Funny how some of you scream we don't follow the science but when the science says put the kids back in school, y'all scream ignore the science.

Anonymous said...

And the snowflakes here will still find a reason to keep classrooms closed and publicly cancel dissenters. I swear I hate so many folks because of their behavior in 2020.

Anonymous said...

Stated another way: Children are better at following instructions than adults.

Anonymous said...

Wife is a teacher. This resonates. She's had multiple go home with COVID, several of whom sat directly in front of her podium. She has not caught it yet, thankfully.

Anonymous said...

1:58, my classroom in open, I teach there every school day, with at least half the class present. Some if these kids had covid. I do my part, no complaining here. So please don’t call me a snowflake. But I do not want to be thrown under the bus. We need to follow science, and even the piece of science KF presents here talks about proper distancing and mask wearing. How many are actually doing these two things? And now teachers are off the vaccination list. So little Johnny will soon tell me that his obese parents are vaccinated against what he told me earlier was a hoax, and that he doesn’t need to wear no mask no more....Thanks, Governor! I’ll remember.

Anonymous said...

@12:57, when you’ve got Klaus Schwab of the IMF telling you, openly, that the powers that be should use this to crush the middle class and people like Newsome, Lightfoot, Pelosi and Cuomo making hardline, shutdown, damn-your-restaurant edicts, then promptly going out to dinner and hair appointments immediately after, maskless.....YES, it is a Democrat scam



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Trollfest '07 was such a success that Jackson Jambalaya will once again host Trollfest '09. Catch this great event which will leave NE Jackson & Fondren in flames. Othor Cain and his band, The Black Power Structure headline the night while Sonjay Poontang returns for an encore performance. Former Frank Melton bodyguard Marcus Wright makes his premier appearance at Trollfest singing "I'm a Sweet Transvestite" from "The Rocky Horror Picture Show." Kamikaze will sing his new hit, “How I sold out to da Man.” Robbie Bell again performs: “Mamas, don't let your babies grow up to be Bells” and “Any friend of Ed Peters is a friend of mine”. After the show, Ms. Bell will autograph copies of her mug shot photos. In a salute to “Dancing with the Stars”, Ms. Bell and Hinds County District Attorney Robert Smith will dance the Wango Tango.

Wrestling returns, except this time it will be a Battle Royal with Othor Cain, Ben Allen, Kim Wade, Haley Fisackerly, Alan Lange, and “Big Cat” Donna Ladd all in the ring at the same time. The Battle Royal will be in a steel cage, no time limit, no referee, and the losers must leave town. Marshand Crisler will be the honorary referee (as it gives him a title without actually having to do anything).


Meet KIM Waaaaaade at the Entergy Tent. For five pesos, Kim will sell you a chance to win a deed to a crack house on Ridgeway Street stuffed in the Howard Industries pinata. Don't worry if the pinata is beaten to shreds, as Mr. Wade has Jose, Emmanuel, and Carlos, all illegal immigrants, available as replacements for the it. Upon leaving the Entergy tent, fig leaves will be available in case Entergy literally takes everything you have as part of its Trollfest ticket price adjustment charge.

Donna Ladd of The Jackson Free Press will give several classes on learning how to write. Smearing, writing without factchecking, and reporting only one side of a story will be covered. A donation to pay their taxes will be accepted and she will be signing copies of their former federal tax liens. Ms. Ladd will give a dramatic reading of her two award-winning essays (They received The Jackson Free Press "Best Of" awards.) "Why everything is always about me" and "Why I cover murders better than anyone else in Jackson".

In the spirit of helping those who are less fortunate, Trollfest '09 adopts a cause for which a portion of the proceeds and donations will be donated: Keeping Frank Melton in his home. The “Keep Frank Melton From Being Homeless” booth will sell chances for five dollars to pin the tail on the jackass. John Reeves has graciously volunteered to be the jackass for this honorable excursion into saving Frank's ass. What's an ass between two friends after all? If Mr. Reeves is unable to um, perform, Speaker Billy McCoy has also volunteered as when the word “jackass” was mentioned he immediately ran as fast as he could to sign up.


In order to help clean up the legal profession, Adam Kilgore of the Mississippi Bar will be giving away free, round-trip plane tickets to the North Pole where they keep their bar complaint forms (which are NOT available online). If you don't want to go to the North Pole, you can enjoy Brant Brantley's (of the Mississippi Commission on Judicial Performance) free guided tours of the quicksand field over by High Street where all complaints against judges disappear. If for some reason you are unable to control yourself, never fear; Judge Houston Patton will operate his jail where no lawyers are needed or allowed as you just sit there for minutes... hours.... months...years until he decides he is tired of you sitting in his jail. Do not think Judge Patton is a bad judge however as he plans to serve free Mad Dog 20/20 to all inmates.

Trollfest '09 is a pet-friendly event as well. Feel free to bring your dog with you and do not worry if your pet gets hungry, as employees of the Jackson Zoo will be on hand to provide some of their animals as food when it gets to be feeding time for your little loved one.

Relax at the Fox News Tent. Since there are only three blonde reporters in Jackson (being blonde is a requirement for working at Fox News), Megan and Kathryn from WAPT and Wendy from WLBT will be on loan to Fox. To gain admittance to the VIP section, bring either your Republican Party ID card or a Rebel Flag. Bringing both and a torn-up Obama yard sign will entitle you to free drinks served by Megan, Wendy, and Kathryn. Get your tickets now. Since this is an event for trolls, no ID is required. Just bring the hate. Bring the family, Trollfest '09 is for EVERYONE!!!

This is definitely a Beaver production.


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Jackson Jambalaya is the home of Trollfest '07. Catch this great event which promises to leave NE Jackson & Fondren in flames. Sonjay Poontang and his band headline the night with a special steel cage, no time limit "loser must leave town" bout between Alan Lange and "Big Cat"Donna Ladd following afterwards. Kamikaze will perform his new song F*** Bush, he's still a _____. Did I mention there was no referee? Dr. Heddy Matthias and Lori Gregory will face off in the undercard dueling with dangling participles and other um, devices. Robbie Bell will perform Her two latest songs: My Best Friends are in the Media and Mama's, Don't Let Your Babies Grow up to be George Bell. Sid Salter of The Clarion-Ledger will host "Pin the Tail on the Trial Lawyer", sponsored by State Farm.

There will be a hugging booth where in exchange for your young son, Frank Melton will give you a loooong hug. Trollfest will have a dunking booth where Muhammed the terrorist will curse you to Allah as you try to hit a target that will drop him into a vat of pig grease. However, in the true spirit of Separate But Equal, Don Imus and someone from NE Jackson will also sit in the dunking booth for an equal amount of time. Tom Head will give a reading for two hours on why he can't figure out who the hell he is. Cliff Cargill will give lessons with his .80 caliber desert eagle, using Frank Melton photos as targets. Tackleberry will be on hand for an autograph session. KIM Waaaaaade will be passing out free titles and deeds to crackhouses formerly owned by The Wood Street Players.

If you get tired come relax at the Fox News Tent. To gain admittance to the VIP section, bring either your Republican Party ID card or a Rebel Flag. Bringing both will entitle you to free drinks.Get your tickets now. Since this is an event for trolls, no ID is required, just bring the hate. Bring the family, Trollfest '07 is for EVERYONE!!!

This is definitely a Beaver production.

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