Marc Johnson Profile picture
Nov 14 16 tweets 4 min read Read on X
I knew there were a lot of fake accounts on this platform, but they are usually obvious. I had no idea how intricate and complex the ruse could be.

Get a load of this story.
1/
About a week ago I got a DM from an account asking me a benign but specific question about my research.

This happens to me all the time. I’ve met some interesting people this way.

Sometimes people even look up my number and call my office. It happens.
2/ Image
The account looked legitimate. They are a paying account (I’ve never seen a bot that pays).
They’ve been on the platform for over 2 years.
They have 52 followers, some of whom I recognize, and they compulsively repost interesting science posts (including some of mine).
3/ Image
The person kept trying to chat with me, but it was just a little ‘off’. I figured it was just an awkward scientist (common), or someone had hacked their account and this wasn’t really the account owner messaging me.

This used to happen on FB all the time.
4/
Anyone who follows me know that when something doesn’t seem right, I don’t let it go.
I decided to look the person up, email them, and just ask them if the DMs were ‘real’.
It wasn’t hard to find them at all.

5/ Image
They had a profile on ResearchGate (sort of like linkedin for scientist).
The picture looked similar and the profile identical. Lots of pubs, but no email.
I decided to look up the pubs where the email address of authors is often listed.
6/ Image
The papers were all real and all listed Julia as an author.
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However, when I went to the journal itself, the papers were real, but the authors were different.
The ResearchGate profile was all a fake.
They had taken the CV of some Iranian scientist, changed the name on the papers, and created a fake ResearchGate account with them.
8/ Image
Once I knew it was a fake, other mistakes jumped out.

One doesn’t study Organic Chemist, it would be chemistry.

CALS is on the Ithaca campus, not NYC.

Chemistry isn’t even in CALS. (I did my postdoc at Cornell)

What grad student has 63 pubs going back to 2007?
9/ Image
I checked, and there really was a Julia Allen that got her PhD in Chemistry at Cornell, but she graduated in 2011. I tried to reach out to her to let her know about this account.
10/
The pubs she listed were all those of a scientist in Iran.

I also emailed him to let him know about this account.
11/
So it’s all a fake, but why?

This is a paid account. It doesn’t seem to be political, or monetary, or porn. It’s all about science.

What’s the end game? Can someone explain?
12/
Perhaps one of the people that follow ‘her’ has gone further down the rabbit hole and can explain.
Has ‘Julia’ been chatting you up too?

I’m curious where the conversation went.

13/13
@drenriquegrande, @DeSciLabs, @JorgensenWL, @materialsc31750, @Antiprotony, @mgmglobal, @ReasetpVE6, @DrPhilipStieg, @c_money619, @ChristosArgyrop, @romeerizwan, @Dawslue4k0L1, @MichaelLouisPl1, @PovedaJB, @phylogenomics, @TourroszDTczJ, @OmnibusXLab, @SCIDirector,
@barbara36smith, @dioranof, @joshdubnau, @ToughtharYL7gj, @DFBHarvard, @FigueroaLa37071, @cobyviner, @ella_ecton16, @DeshwalSoni, @SirnarlinE3AQ, @tyler53192, @Tarefurgfc6, @Clairmp53br, @Thaun1IQ, @Elonspacgod, @L4mC16RNHY180D, @Sooo1409Sooo, @Leonardkevin19, @Genomicas1,
@chaz_hong, @arthur_courtin, @OlzmannLab, @Minnie644045, @BakerLabMS, @CMichaelGibson, @DrSaba, @coxsarah789, @kevinoleary677, @sycd84, @kellyxugu, @ForsbergLab, @TurnewTqwbWbb

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More from @SolidEvidence

Nov 5
I'm doubling down on MV.1*

This lineage has been growing rapidly recently, but it's been hard to tell if it would be a real contender since most of the infections were from Singapore.

In North America its growth has been more questionable.

But I have new data.
1/ Image
You probably know that our team screens all of the wastewater sequences submitted to SRA for cryptic lineages.

One of the 'cryptic-specific' changes we look for is S:F456V, which is common in cryptic, but hadn't been seen much in circulation until recently.
2/
MV.1* has a reversion at S:478 back to T, which is right next door to 456V, so its easy for me to check if the 456V sequences are in fact MV.1*

3/ Image
Read 5 tweets
Oct 28
Cryptic lineage quarterly update, last update for now.

I save the weirdest for last. Read to the end.
1/ Image
A lineage popped up in our cryptic screen because most of the seqs did not have the s2m deletion (meaning it was from 2022 or earlier).

The sample was from 9/30 in Texas. Population is 780, so it isn’t even on the NWSS map.

I don’t know where the sample was from.
2/ Image
So next I checked the RBD, and it was virtually blank. Decent coverage, but no mutations to speak of.
Very weird.
3/ Image
Read 9 tweets
Oct 26
Cryptic lineage quarterly update, part 3
Cleveland variant.
If you missed part 1 and 2, they are here.
x.com/SolidEvidence/…
x.com/SolidEvidence/…
1/
My favorite way of finding cryptic lineages by screening for what I call the ‘s2m fix’.
s2m is an RNA element at the end of the SC2 genome that has been deleted from all lineages in circulation for over 2 years.
If you see the s2m sequence, you know it is an old lineage.

2/
A distinctive thing about cryptic lineages is about a third of the time they pick up a very specific mutation in their s2m sequence. T29758G. It’s actually a reversion to the sequence found in bats.

More about s2m here, if you are interested.


3/
Read 11 tweets
Oct 23
Cryptic lineage quarterly update, part 2
BA.1 and Delta
If you missed part 1, it is here.

1/
BA.1 cryptics. BA.1 infections all occurred in late 2021-early 2022. If there is good coverage, BA.1 lineages are easy to spot because they have a unique Spike insertion that no other lineages have had.
2/ Image
There were hints of a few BA.1 lineages across the country, but there were only 2 that were really clear, one in San Diego and one in Western Colorado.
3/
Read 12 tweets
Oct 22
Cryptic lineage quarterly update, part 1
Recent BA.2-XBB cryptics

Cryptic lineages are unique, evolutionarily advanced SARS-CoV-2 lineages detected from wastewater from an unknown source.

1/ Image
We are almost certain that these lineages are derived from individuals that have been infected with SARS-CoV-2 for several years that are shedding a ton of viral material.

If you want to know why we think these are from humans, read this thread.

2/
Or read our paper on the lineage we almost tracked down.

3/
sciencedirect.com/science/articl…
Read 14 tweets
Oct 2
Update on the Bavarian cryptic lineage that @LongDesertTrain spotted.

This lineage first popped up in August but has been consistently present since.


1/ cov-spectrum.org
Image
The lineage is derived from BA.5.1.10, but taken at face value, it has over 90 additional mutations and deletions.

2/ Image
BA.5.1.10 stopped circulating back in January, 2023 in Germany, so this person was presumably infected for at least 18 months before they 'popped' and started showing up in wastewater samples.

3/ Image
Read 4 tweets

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