Alina Chan Profile picture
2 Mar, 16 tweets, 8 min read
FYI journalists reporting on the @WHO convened COVID-19 origins collaborative process of discovery.

@DrTedros said it is not a WHO study or investigation.

It is an independent study by predominantly non-WHO experts. ~Half of the team is unidentified.
who.int/publications/m…
The WHO-convened team had to work with Chinese counterparts (half of the team) in a collaborative process; they did not have investigatory powers to look into COVID-19 origin hypotheses that their hosts did not want them looking into.
This was reinforced by the leader of the WHO-convened team in a recent @ScienceMagazine interview: sciencemag.org/news/2021/02/p…
I'm bringing this up now because we have no idea when the interim report will be released. There's no deadline for it. No explanation for why it has been delayed.

It's possible that there's some disagreement among the team about more controversial origins #PopsicleOrigins
The first thing we heard from the WHO-convened team about the possibility of COVID-19 / SARS-CoV-2 originating from frozen foods was as follows (Feb 9, almost 3h long presser): who.int/publications/m…
This resulted in an unsurprising interpretation by Chinese media that "Global experts scrutinize Southeast Asia as their target in tracing origins of coronavirus" and "It's also likely that the virus was transmitted from frozen food, Peter Ben Embarek"
globaltimes.cn/page/202102/12…
Although 9 days later, it was clarified by the WHO-convened team leader that they were only looking at within-China cold chain origins and not international / imported cold chain origins...

The damage was done.
This #PopsicleOrigins saga resulted in a series of quotes from different members on the WHO-convened team reflecting a serious non-consensus on this topic.

(I hope they understand that future generations will look upon their signatures on the interim report.)
I think some of the team members understand.

“It’s very difficult to imagine a situation where all this [contaminated] food came to one market in China, and not the biggest one at that, from different countries and it all started from there,” Dedkov said.
ft.com/content/deefc0…
Leendertz, German team member: “If you transport a virus fresh or frozen, the virus is not born from a piece of plastic. It’s about where the virus is from before that. Cold chain is never the source”

I'm not sure that even the Chinese experts/authorities believe in the #PopsicleOrigins hypothesis. According to the WHO-convened team, they didn't bother to track the supply chains to the Huanan seafood market.

Apparently, they just left it to the WHO-convened team to do after their visit to Wuhan more than a year post-outbreak.

Not urgent. Finding the source of a killer virus that can shut down your economy and life as we know it.
I don't understand what people are doing with frozen food packaging that a pandemic could've been imagined to originate this way. newscientist.com/article/226759…
Were they perchance making a Lady Gaga-esque dress from frozen meats?
There's not even circumstantial evidence pointing to #PopsicleOrigins None of the frozen meats at the Huanan market tested positive for the virus. There is no well-documented case of a frozen meat-acquired infection by a coronavirus.
nature.com/articles/d4158…
I'd recommend the WHO-convened team to just let go of the #PopsicleOrigins hypothesis in the interim report.

If you're investigating supply chains or SE Asia (or even Europe🤕) as the origins, just say so. No need to say it transmitted via frozen meats.

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with Alina Chan

Alina Chan Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @Ayjchan

1 Mar
This is a good piece that communicates some of the major misunderstandings held by scientists and experts exploring the origins of SARS2 / COVID-19.
The first major misunderstanding:

Some experts keep saying it took a decade to confirm that SARS1 came from bats.

But in 2003 and 2004, the animal sources of SARS1 were found within 2 months and 1 week, respectively.
So I think these top experts studying the origins are very very confused.

They’re looking for the ancestral origins of SARS2 in bats.

But finding the proximal origins of the virus shouldn’t take a decade.
Read 20 tweets
27 Feb
Starting to wonder how many virus samples are sitting in freezers waiting to be sequenced.

The newest pangolin CoV in GISAID (EPI_ISL_610156) was collected in Yunnan in 2017. Someone implied that this was proof of the 2019 Guangdong pangolin CoV, but it's quite different...
The Yunnan pangolin CoV sequence is full of gaps, missing front half of the Spike, no RBD to even compare with the SARS2-like RBD in the Guangdong pangolin CoV.

Not sure why anyone would think this Yunnan pangolin CoV is useful to verifying the history of the GD pangolin CoV.
Meanwhile, the Guangdong pangolin CoV authors who haven't provided any of the novel raw data mentioned in their May 2020 @PLOSPathogens paper just released more short sequence fragments for another paper?
ncbi.nlm.nih.gov/popset?DbFrom=…
Read 11 tweets
26 Feb
“scientists expressed surprise and even disbelief that the further investigations, into both the first patient's contact history and the supply chain to the Huanan market that the WHO sought, had apparently not already been performed by China.” cnn.com/2021/02/21/chi…
“specialist Daniel Lucey.. said it was “frankly implausible” that such testing had not been done. “My question is why would it not have been done? It was known to be necessary and it’s in China’s scientific.. public health.. national security interest””
scmp.com/news/china/sci…
This would be like if in Stranger Things, the protagonists all neglected to investigate the local National Laboratory while searching for the inter-dimensional gateway (source of spillover).
Read 4 tweets
26 Feb
To get a sense of how slowly investigations into the origins of covid-19 / SARS2 are going...

In the case of SARS1 (2002-2004), virus emerged late in the year 2002.

1st virus isolated in March 2003. 1st genome sequence in April 2003.

Market animal sources found in May 2003.
Oct 2003, it was reported that the animal trading community had previously undetected exposure to SARS virus(es).

In other words, SARS1 was found to have spilled over in a place where animal traders are exposed to similar viruses.

cdc.gov/mmwr/preview/m…
When SARS1 emerged again in late 2003, the tracking of the spillover source was even faster.

Patient (a waitress) diagnosed on Jan 2, 2004.

In 2 days, samples had been collected from all palm civets and employees at the restaurant. Several samples SARS+

ncbi.nlm.nih.gov/pmc/articles/P…
Read 5 tweets
26 Feb
Am I getting this right? The @WHO convened team heard from an index case that there was a 2nd market but because the meeting ended, they didn’t get details or even the name of the market.

“On the next episode of CSI Wuhan...”
wsj.com/articles/in-hu…
Also, before the WHO-convened team went to Wuhan, Chinese scientists had already tested 10,000s of animal samples including from around Wuhan city and Hubei province - all negative for SARS2. Can the team access the data in higher resolution? Which markets and farms were checked?
A timeline of when results were known would also be exceedingly helpful. The @WSJ reported on this in May 2020, eg OIE was informed on Jan 31, 2020 that no animals at the Huanan market tested positive for SARS2. wsj.com/articles/china…
Read 4 tweets
25 Feb
Feb 9, we heard from WHO-convened team (which is 50% scientists in China, 50% international) they were going to stop looking into "extremely unlikely" lab origins & start investigating #PopsicleOrigins

One team member said this decision was to "respect" the Chinese counterparts.
Feb 22, one of WHO-convened team members says the COVID-19 virus could've come from Thailand, even naming one market.

DESPITE closest relatives to SARS-CoV-2 being from China

DESPITE the virus in Thailand not even using the same human receptor 🤯

bangkokpost.com/thailand/gener…
Jan 2020 China said the virus likely came from wild animals sold at the Wuhan seafood market. May 2020 they said the market was just a later cluster, not the origin.

Since then, they've suggested that covid-19 was imported into China through cold chain.
Read 7 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!

Follow Us on Twitter!