No, you can’t. Kids being lower risk does not mean “same as an already vaccinated grandparent.”

I value other perspectives, like economics, in vaccine discussions. All are stakeholders in public health. But have the humility to know when you’ve hit the limits of your expertise.
This is insufficient. The problem wasn't just the headline. The problem is that two of the fundamental arguments are wrong.

1. Risk of infection is just as relevant as risk of disease.

2. Vaccinating only adults won't get us to herd immunity by summer.
And I should add there's another risk that wasn't addressed at all: the vaccines are not 100% effective (though they are very good). Failing to mitigate transmission risk by relying on flawed risk assessments still presents a danger, especially to more vulnerable adults.
One more thing: I also don't appreciate the framing that this piece made me "upset." This isn't about emotions. It's about the author being wrong and apparently unwilling to correct the errors. It's a disingenuous response to legitimate criticism of the substance of the piece.

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More from @angie_rasmussen

18 Mar
So, here's another great paper out today from my friend and colleague @DrSimonAnthony.

It will be of particular interest to those pondering possible SARS-CoV-2 origins, and viral evolution enthusiasts in general.

Brace yourself: it's about how different sarbecoviruses use ACE2.
In short: Dr. Anthony and his PREDICT colleagues found 3 isolates of a novel sarbecovirus (SARS-like betacoronavirus) in bats...from Uganda and Rwanda. Hey, that's nowhere near China, so what does that have to do with SARS-CoV-2?
A lot, actually. Sarbecoviruses are not exclusive to China or East Asia. That's where they've been studied most extensively, but they aren't restricted to that part of the world. Here's how these viruses and host bat species relate to each other and where they were discovered.
Read 19 tweets
12 Mar
The sequences from the Ebola virus outbreak in Guinea were posted on virological, and they are, to put it mildly, absolutely stunning.

The sequences are only 12-13 nucleotides different from those circulating in the 2014-2016 epidemic.

virological.org/t/guinea-2021-…
This suggests that this new outbreak resulted from transmission from a persistently infected survivor of the prior epidemic, which is bad for a whole host of reasons, including the further stigmatization of Ebola virus disease survivors.
virological.org/t/guinea-2021-…
This is also genuinely shocking to me scientifically.

Based on the known mutation rate of EBOV/Makona, we'd expect viruses that have been replicating for 5-7 years, even at low levels, to have many more mutations. Like hundreds. These have 12.
virological.org/t/release-4-eb…
Read 8 tweets
11 Mar
Good grief. This isn’t even a study—it’s a preprint of a perspective piece advancing an untested hypothesis (pork shortages led people to seek other meat sources). You can poke holes in this without much effort.
For example, do the authors really think that ASF-induced shortages of farmed pork led people to start sourcing wildlife to replace it? It would take many metric shit-tons of bats and civets to replace the lost pork.
Why wouldn’t most shoppers just use a more readily available meat like duck?

I know when pork chops are sold out, I immediately start thinking about sourcing some rhinolophid bat meat to replace it. Then I realize that’s dumb and just grab a chicken or whatever instead.
Read 9 tweets
10 Mar
I'm writing about this (among other knowledge gaps still to be filled with regard to SARS-CoV-2) and Dr. Goldstein is right: I've been working on host responses to the big bad beta-CoVs since 2012, but haven't given much thought about tissue tropism of the other hCoVs...
This has led me to think about the relevance of fecal shedding for SARS-CoV-2 to transmission. The key to understanding SARS-CoV-2 transmission is that it's situational, even with more dominant modes (inhalation, direct contact) of transmission.
Dating back to SARS classic in 2003 & now with SARS-CoV-2, transmission via fecal bioaerosols is thought to occur when specific conditions occur with a building's plumbing. Despite lots of 🚨🚽🦠⛲️💩☣️-type tweets about it, people aren't getting COVID every time a toilet flushes.
Read 22 tweets
3 Mar
It has come to my attention that noted anti-vaccine zealot Robert F. Kennedy Jr. is releasing a film tomorrow targeting the Black community with some appalling misinformation.

It is not just filled with falsehoods. Despite claiming to be anti-racist, it is racist as hell
Medical racism absolutely exists, and underlies the disproportionate impact on the COVID-19 pandemic on the Black community. But correcting those disparities by claiming vaccines contribute to medical racism?

That's much, much worse.
You know what the result of discouraging Black people from getting the COVID-19 vaccine will be?

More preventable deaths in the Black community.

Race-based targeting with the goal of more Black people dying as a result?

It's morally bankrupt and outright racist.
Read 5 tweets
2 Mar
This position is very frustrating. It's both inconsistent with Church teachings and based on an inaccurate understanding of vaccine development.

1. The Vatican has reiterated that it is morally acceptable to use vaccines developed with HEK293 cells.
washingtonpost.com/nation/2021/03…
2. HEK293 cells were taken from a single legally aborted fetus in the Netherlands nearly 50 years ago. Fetal tissue is not continually harvested for use in vaccine development. Virtually every medical/therapeutic/vaccine on the market used this cell line at some point.
3. Moderna and Pfizer also used HEK293 cells to perform confirmatory testing of their vaccines.

4. None of the vaccines contain actual fetal tissue.

5. If you are "pro-life," presumably you also object to millions dying from a preventable infectious disease as well as abortion.
Read 4 tweets

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