Yesterday, the CDC released new guidelines for schools. Clear, science-based guidance was long overdue, so everyone was agog all week.

Did they get what they wanted? This is a long 🧵, buckle in.

Before I dive in: I have no agenda here. I am not anti-kids, anti-schools or anti-teachers. The only thing I am is anti-virus. I follow the science, but despite what both sides insist, the science is not straightforward, or we wouldn't have this much division and dissent.
So, back to the CDC guidelines: Pro-opening advocates hoped for a sensible read of the evidence and teachers unions for strict precautions and vaccinations. Did they get what they want? Short answer: No.
There is no issue that is more divisive right now (ok, masks and vaccines). But kids of all colors are suffering, and the long-term loss of education and emotional toll might be devastating. OTOH: the rates in the US might be dropping but objectively they are still very high.
Schools should be the last to close and first to reopen, but many communities have not done that and probably will never. Those communities have not "budgeted" for schools by closing bars and restaurants. In fact, many are now reopening closed businesses before schools.
The CDC, as might be expected from a federal agency, took a conservative middle path. It said elementary schools can be open always. But when transmission is high, they go hybrid and middle and high schools should be fully remote.
Sounds reasonable given what we know of greater risk to high school students (very likely) and middle school students (maybe) compared to kids under 10. But pro-opening advocates are not happy because what CDC considers high transmission is way too low.
In fact, @CDCDirector said yesterday that 90% of school districts would fall into the high transmission category right now. Many schools have been operating at these levels without a problem -- but if they are taking all precautions (ie, masking, distancing hand-washing etc)
Some scientists have pointed out that in-school transmission is a better metric than community transmission because schools can control the environment and make it safer than the community at large. And that is an excellent point.
BUT: and it's a big but. We can only know what in-school transmission is if schools do regular testing -- not just diagnostic testing of symptomatic people, but screening for asymptomatic ones, or surveillance of the school population as a whole.
The problem, it seems to me, is that the schools that don't take precautions and need testing are also the ones least likely to implement testing unless someone forces them to -- which is highly unlikely. So... perhaps this is CDC's way of guiding *them*?
Some scientists have said the CDC should at least make it clear that for schools that are doing testing, the bar should be different -- again, another excellent point. Testing, done with good tests and regularly, can track in-school transmission well.
The CDC guidelines also said physical distancing is only required at high transmission -- another point of contention. Pro-opening advocates would say it's unnecessary at all levels, some teachers unions say 6 feet is minimum required.
What we know is that indoors, with poor ventilation, 6 feet is not much better than 3. But with good masking, both are doable. The CDC buried all talk of ventilation -- and my hunch is that they did so because they didn't want talk of HVAC systems etc to stop schools from opening
Some teachers unions are not happy about the no-distancing requirement at lower transmission or about the CDC saying vaccinating teachers should not be a prerequisite for reopening. Some insist everyone be vaccinated first -- which will not happen by fall.
A point about unions: Some are tough and are asking for things that will be impossible to fulfill, even with low transmission, even in the fall. And that is not helping the ugly fights over school re-openings.
OTOH, talking about teachers and unions as "evil" is also ridiculous. *Nothing* about the school debate is so straightforward. I've spoken to many, many teachers over the past weeks who are heartbroken about being painted as lazy and horrible people.
Some teachers are talking about permanently leaving the profession over this, when we need *more* teachers, not less. And not all unions are bad, just as not all people who want schools to open want it for sensible, logical reasons.
Full disclosure: Most NYT reporters are also represented by a guild that has our back. So on this I absolutely see both sides and I don't think it helps any of us to demonize either side. Neither side is malicious, neither is stupid.
As a parent of an anxious middle-schooler and a hypersocial elementary schooler, I *desperately* want schools to open. But as a science journalist, I genuinely believe there are no straightforward one-size-fits-all answers here.
With community transmission at the levels it still is, and with so many schools not following precautions, there cannot be a low bar for reopening. And yet, it's not fair to the many schools that have done very well to have to close.
If you came here looking for simple takeaways, I'm sorry. I'm no apologist for the CDC, as those of you who have followed me for a while know. But I sympathize with the agency's plight in this case. And I am heartsick over the ugly fighting between the two camps. That is all.

More from Society

Imagine if Christians actually had to live according to their Bibles.


Imagine if Christians actually sacrificed themselves for the good of those they considered their enemies, with no thought of any recompense or reward, but only to honor the essential humanity of all people.

Imagine if Christians sold all their possessions and gave it to the poor.

Imagine if they relentlessly stood up for the widow, the orphan, and the foreigner.

Imagine if they worshipped a God whose response to political power was to reject it.

Or cancelled all debt owed them?

Imagine if the primary orientation of Christians was what others needed, not what they deserved.

Imagine Christians with no interest in protecting what they had.

Imagine Christians who made room for other beliefs, and honored the truths they found there.

Imagine Christians who saved their forgiveness and mercy for others, rather than saving it for themselves.

Whose empathy went first to the abused, not the abuser.

Who didn't see tax as theft; who didn't need to control distribution of public good to the deserving.
@danielashby @AdamWJT @Greens4HS2 @TheGreenParty @GarethDennis @XRebellionUK @Hs2RebelRebel @HS2ltd I'll bite. Let's try to keep it factual. There's a reasonable basis to some aspects of this question, that it might be possible to agree on. Then there are other, more variable, elements which depend on external factors such as transport and energy policy. /1

@AdamWJT @Greens4HS2 @TheGreenParty @GarethDennis @XRebellionUK @Hs2RebelRebel @HS2ltd First up, we know reasonably well how much energy it takes to propel a high-speed train along the HS2 route. We can translate that into effective CO2 generated by making some assumptions about how green the electricity grid is. /2

@AdamWJT @Greens4HS2 @TheGreenParty @GarethDennis @XRebellionUK @Hs2RebelRebel @HS2ltd Secondly, we have a reasonable grasp of how much CO2 is going to be generated by building HS2 - there are standard methods of working this out, based on the amount of steel, concrete, earthmoving, machine-fuelling etc required. /3

@AdamWJT @Greens4HS2 @TheGreenParty @GarethDennis @XRebellionUK @Hs2RebelRebel @HS2ltd Thirdly, we can estimate how much CO2 is generated by cutting down trees, and how much is captured by planting new trees. We can also estimate how much CO2 is needed to keep the railway running and generated by maintaining the track /4

@AdamWJT @Greens4HS2 @TheGreenParty @GarethDennis @XRebellionUK @Hs2RebelRebel @HS2ltd We know how much CO2 is saved by moving goods by freight train on the lines freed up by moving the express trains on to HS2, rather than by truck. /5

You May Also Like

Moderna CEO Stephane Bancel was previously CEO of bioMerieux in France from 07-10.

Alain Merieux, who owns bioMerieux, was instrumental in the creation of the Wuhan Institute of Virology P4 Lab.

The same people who helped create the virus, also helped to create the vaccines...


Moderna partnered with French Pasteur Institute in 2015 to develop mRNA vaccine technology.

Pasteur Institute partnered with the Wuhan P4 Laboratory in 2017 along with the Merieux Foundation to study emerging viruses...
https://t.co/yFsHwrNYaK
https://t.co/9M5lydBKhM


Nobel prize winning scientist Luc Montagnier asserts that Sars-Cov-2 is man-made and originated from the Wuhan Institute of Virology.

Montagnier did extensive work with the Pasteur Institute in France which was partnered with the Wuhan P4.

Merieux Foundation & the Chinese government have worked together since 1965, and partnered to study emerging pathogens in Africa in 2015.

Their research included "PATHOGENS CARRIED BY BATS" that provoke respiratory diseases.

🚨🚨🚨
https://t.co/gVwpT0ssqI
THREAD: 12 Things Everyone Should Know About IQ

1. IQ is one of the most heritable psychological traits – that is, individual differences in IQ are strongly associated with individual differences in genes (at least in fairly typical modern environments). https://t.co/3XxzW9bxLE


2. The heritability of IQ *increases* from childhood to adulthood. Meanwhile, the effect of the shared environment largely fades away. In other words, when it comes to IQ, nature becomes more important as we get older, nurture less.
https://t.co/UqtS1lpw3n


3. IQ scores have been increasing for the last century or so, a phenomenon known as the Flynn effect. https://t.co/sCZvCst3hw (N ≈ 4 million)

(Note that the Flynn effect shows that IQ isn't 100% genetic; it doesn't show that it's 100% environmental.)


4. IQ predicts many important real world outcomes.

For example, though far from perfect, IQ is the single-best predictor of job performance we have – much better than Emotional Intelligence, the Big Five, Grit, etc. https://t.co/rKUgKDAAVx https://t.co/DWbVI8QSU3


5. Higher IQ is associated with a lower risk of death from most causes, including cardiovascular disease, respiratory disease, most forms of cancer, homicide, suicide, and accident. https://t.co/PJjGNyeQRA (N = 728,160)