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26 Feb, 6 tweets, 3 min read
Let me make sure I understand - with data (below) showing that #COVID19 is no longer declining in MA, with the more infectious variant increasing, and the goal to open schools in April, we are opening restaurants on Monday at full capacity with musical performances? #mapoli
Here are some recent studies (graphics borrowed from @EricTopol) which reinforce risks associated with in-person dining 👇
At least we prioritized vaccinating food service workers to make sure we protected this vulnerable population before reopening.

Oh, wait...
I predicted to my wife a few days ago that, as soon as a critical mass of the 65+ group was vaccinated, there would be an immediate push to open restaurants and other venues so they could return to “normal”. Thought I was joking.
Time to stop tweeting and get my kids ready for their (ahem) remote school day...
Timely quote today from @CDCDirector -

"Things are tenuous," Dr. Rochelle Walensky said at a White House briefing. "Now is not the time to relax restrictions."

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More from @jonlevyBU

Jon Levy Profile picture
7 Feb
1. Just celebrated 20 yrs as a professor this week, so I’ve been thinking about life in academia.

I have only one piece of advice - know yourself, use that to figure out what success means to you, and find people who will help you achieve that success.

Let me explain... 🧵
2. You will meet a number of potential mentors along the way. Some will be lousy. Some will be good but will guide you toward their notion of success. The great ones will ask you first what you want to achieve, and strategize with you about how to get there.
3. There are so many dimensions of academia. Do you want to devote most time to teaching? Research? Administration? Why? And what would it mean TO YOU (even if not to others) be successful in each area?
Read 11 tweets
Jon Levy Profile picture
22 Aug 20
1. There has never been more focus on ventilation in school buildings. This leads to the obvious question - what do we actually know about ventilation in schools, and how important it is?

THREAD
2. First, a primer. Many studies use indoor CO2 to characterize ventilation, because the primary source in a school building is people breathing, and the outdoor concentration is relatively stable.
3. A recent review article by Fisk reported that ALL studies in schools found average CO2 of over 1000 ppm, a sign of a poorly ventilated space (outdoor CO2 is roughly 400 ppm).

onlinelibrary.wiley.com/doi/full/10.11…
Read 9 tweets
Jon Levy Profile picture
16 Aug 20
1. This has been a week of contentious meetings, angry online debates, and complex conversations about school re-opening.

One key topic: how risky is it to return to school? The literature on risk perception may help to increase understanding and improve communication.

THREAD
2. I think the brilliant work of Paul Slovic, as described in his article "Perception of Risk" in 1987, makes it clear how we are talking past each other when sifting through data on the health risks associated with returning to school.

science.sciencemag.org/content/236/47…
3. Slovic found that there was a large gap between how risky people thought different activities were and what experts thought. But his key insight was this is not because the public was ignorant - it was because people saw risk as more than just expected number of fatalities.
Read 9 tweets
Jon Levy Profile picture
8 Aug 20
1. I’ve been thinking a lot about our tendency for “bright line” decision making and what that means for how we approach school reopening decisions this fall...a little wonky, but indulge me, since I think it matters...

THREAD
2. Epidemiologists are quite familiar with this phenomenon, as p = 0.05 is treated as the magical bright line by some. If p = 0.049, it is significant and “real”. If p = 0.051, it is insignificant and “not real”. Many have written on this topic ⬇️

amstat.tandfonline.com/doi/full/10.10…
3. How does this connect to #COVID19? One place is the 6-foot “rule”. It is treated (by some) as a magical bright line. 5’11” - deep trouble. 6’1” - no risk, all is well.

The reality, of course, is that there is a continuum of exposure risk.
Read 11 tweets
Jon Levy Profile picture
11 Jul 20
1. What do exposure science and risk assessment, 2 core methods of environmental health, tell us about how to think about opening K-12 schools this fall?

THREAD
2. First, some definitions - exposure science involves the study of real-world contact with and uptake of toxic materials than can cause heath effects.

nature.com/articles/75004…
3. Risk assessment estimates the nature and probability of adverse health effects to people who may be exposed to toxic materials. And risk management tries to figure out what to do to reduce the risk.
Read 20 tweets
Jon Levy Profile picture
5 May 19
20 years ago today (!), I defended my dissertation. To celebrate this anniversary, let me offer up 10 thoughts/opinions about being a PhD student and 10 about being an advisor. #phdlife #AcademicTwiiter #PhdChat
Student 1/10: Your dissertation is not your life’s work. It is an opportunity to learn and a means to an end. Don’t let the perfect be the enemy of the good. Graduate.
Student 2/10: Ask for help. You are here to learn, and not all learning happens on your own. Spending 3 months flailing isn’t a learning experience. It’s lost time.
Read 22 tweets

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