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Mike Honey

@Mike_Honey_

Jan 27, 2022 • 12 tweets • 5 min read • Read on X

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Here's the latest variant+mutation picture for the new BA.1.1 (Omicron) lineage. This was formerly BA.1 with the Spike R346K mutation.

That mutation is understood to give increased immunity escape.

The BA.1.1 definition is now flowing out to databases and websites.
🧵

Note the Frequency is calculated for each country independently, comparing to all the recent samples sequenced in that country.

Linear and Log Y-axis presented - log axis helps compare growth rates.

BA.1.1 has quickly reached 65% frequency in the USA. Here are the leading 7 states (by volume of BA.1.1 sequences shared).

Colorado (79%) and Washington (75%) are reporting the highest frequencies.

Here are the next 7 US states reporting BA.1.1.

Georgia (84%) and Ohio (82%) are reporting the highest frequencies

BA.1.1 is now the leading lineage in Canada at 51%. Here are the leading provinces.

The sample sizes are very small after late-December, and some provinces are lagging by weeks, making it hard to compare.

Across Africa, BA.1.1 has not reached high frequencies in most countries, besides Nigeria (76%).

Across Asia, BA.1.1 has reached the highest frequency in Japan (99%) and Singapore (53%)

Here are the other top countries reporting BA.1.1 across Europe.

The Netherlands (46%) and Switzerland (43%) have reached the highest frequency.

Across South America, BA.1.1 has reached the highest frequency in French Guina (92%) and Argentina (85%)

Interactive dataviz here:
github.com/Mike-Honey/cov…

The study discussed in this pre-print noted:
"...the entire panel of antibodies [every combination of natural immunity and/or vaccine] was essentially rendered inactive against this minor form of the Omicron variant."
news-medical.net/amp/news/20211…

* [at that time] minor form

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More from @Mike_Honey_

Mike Honey

@Mike_Honey_

Aug 2

Here’s the July 2025 update I just sent to my GitHub Sponsors.
I continued to share results from these projects, here and on other social media platforms
🧵

🧵mike-honey.github.io/sponsors/GitHu…

If you are in a position to support my open-source project work, then any amount is welcome. You just need to create a free GitHub account, and you can remain anonymous if you prefer.
There’s info on that page about how your contribution will be used.

🧵github.com/sponsors/Mike-…

Read 4 tweets

Mike Honey

@Mike_Honey_

Jul 27

Here's the latest variant picture for the "Global - Other" countries, to early July.

The NB.1.8.1 "Nimbus" variant remained dominant, but fell to finish at 42%.

XFG.* "Stratus" grew strongly to 40%.

#COVID19 #GlobalOther #NB_1_8_1 #Nimbus #XFG #Stratus
🧵

This perspective excludes all the high-volume countries and regions that I routinely report on: Australia, NZ, Europe, Canada and the US. The remaining countries are aggregated into this report.
🧵

Here are the leading countries reporting the NB.1.8.1 "Nimbus" variant.
🧵

Read 6 tweets

Mike Honey

@Mike_Honey_

Jul 27

Here's the latest variant picture for the United States, to early July.

The XFG.* "Stratus" variant continued it’s dominance, growing to 58% frequency.

NB.1.8.1 "Nimbus" was fairly flat, finishing at 14%.

#COVID19 #USA #XFG #Stratus #NB_1_8_1 #Nimbus
🧵

Here are the leading US states reporting XFG.* "Stratus". New York state reported strong growth to 78%.
🧵

Here are the leading US states reporting NB.1.8.1 "Nimbus". Besides the International Traveller samples, it has been most common in California and Colorado, although all are roughly flat or declining lately.
🧵

Read 5 tweets

Mike Honey

@Mike_Honey_

Jul 19

Here's the latest variant picture for the "Global - Other" countries, to late June.

The NB.1.8.1 "Nimbus" variant was fairly steady, finishing at 49%.

XFG.* "Stratus" grew strongly to 30%.

#COVID19 #GlobalOther #NB_1_8_1 #Nimbus #XFG #Stratus
🧵

The volatility is due to the ragged timing of submissions from various countries.

This perspective excludes all the high-volume countries and regions that I routinely report on: Australia, NZ, Europe, Canada and the US. The remaining countries are aggregated into this report.
🧵

Here are the leading countries reporting the NB.1.8.1 "Nimbus" variant.
🧵

Read 6 tweets

Mike Honey

@Mike_Honey_

Jul 19

Here's the latest variant picture for the United States, to late June.

The XFG.* "Stratus" variant grew to dominant at 40%, with LP.8.1.* at 28%.

Growth of the NB.1.8.1 "Nimbus" variant is slower, at 16%.

#COVID19 #USA #XFG #Stratus #NB_1_8_1 #Nimbus
🧵

For the US, the XFG.* "Stratus" variant shows a strong growth advantage of 5% per day (35% per week) over LP.8.1.*, with a crossover in mid-June.
🧵

Here are the leading US states reporting XFG.* "Stratus". New York state leads at 59%. It has also been quite common among the International Traveller samples at 46%.
🧵

Read 7 tweets

Mike Honey

@Mike_Honey_

Jul 19

Here's the latest variant picture with a global scope, to late June.

The NB.1.8.1 "Nimbus" and XFG.* "Stratus" variants are battling for dominance in an unclear picture.

XFG.* "Stratus" looks to have the best growth rate.

#COVID19 #Global #NB_1_8_1 #Nimbus #XFG #Stratus
🧵

Here are the trends across all the International Traveller samples. From that perspective, XFG.* "Stratus" is dominant at 48%.

This dataset (mostly arrivals in the US and Japan) is arguably more random, as it is not skewed by sequencing volumes.
🧵

Globally, the NB.1.8.1 "Nimbus" variant is showing a steady growth advantage of 3.1% per day (22% per week) over the LP.8.1.* variant, with a crossover in late May.
🧵

Read 8 tweets

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