#SubcladeK
Health alert as ‘super flu’ variant detected in Argentina | Buenos Aires Times
www.batimes.com.ar
December 22, 2025 at 12:35 PM
It's the new variant subcladeK-- don't mess around - go in to the doctor before it becomes viral pneumonia and puts you in the hospital.
March 10, 2026 at 2:02 AM
[H3N2] Canada: The Children’s Hospital of Eastern Ontario reported that three young children have died as a result of influenza A complications in the first two weeks of December. www.seekyoursounds.com/news/toronto... #ClimateCrisis #Flu #Mutation #H3N2 #SubcladeK #MaskUp #Ontario #Canada
3 children dead from flu complications in two weeks: CHEO | Seekr
www.seekyoursounds.com
December 15, 2025 at 5:56 PM
🧪 Kids need #Flu #Influenza #vaccine 💉 Need to watch out for #influenza #subcladeK - immune evasion - may not protect against infection but should protect against severe disease 🦠
November 16, 2025 at 6:59 PM
It all continues to point towards a strong #Influenza season in NH due to #subcladeK "...countries should be prepared for increased demands on their healthcare systems". Wear mask if sick and although #vaccine effectiveness is not ideal, some protection is better than none.
#PublicHealth #Flu
@eurosurveillance.org paper by Ian Barr, et al on
• near-global spread of influenza A(H3N2) subclade K
• record case numbers in Australia/New Zealand
• high transmissibility, but no evidence of increased severity
• influenza antivirals still effective

www.eurosurveillance.org/content/10.2...
December 15, 2025 at 9:46 AM
Masks will be essential: this year's flu is not one considered for this year's vaccine, and is deemed more severe than recent flu viruses. Hospitalization curve is much steeper than recent flu's.
#InfluenzaH3N2
#SubcladeK
Flu season in the US is heating up, driven by new subclade K variant | CNN
The latest data on respiratory illness in the United States shows that shoppers and merry-makers are spreading more than just holiday cheer: They’re also passing around germs. In many cases, it’s a ne...
www.cnn.com
December 17, 2025 at 5:51 AM
From #SpokesmanReview: The country faces record flu cases due to a new strain, #SubcladeK. Though not in this year’s shot, the vaccine is still useful.

@jennifernuzzo.bsky.social notes #Flu strain mismatches happen, but vaccines still keep people out of the hospital.

More here ⤵️
What is 'Subclade K'? The new flu variant may already be in Spokane
Much of the country is facing record flu cases thanks to a new strain of the virus. And the “subclade K” variant is likely already here in Spokane.
www.spokesman.com
January 9, 2026 at 5:32 PM
There were fears 2025-26 might be a bad #flu year because of a new #H3N2 variant called subclade K. Looks like the jury is in; it is making a lot of people sick. (The timing surely contributes.) NY State has never recorded as many flu cases in 1 week as it has now. www.statnews.com/2025/11/20/f...
December 31, 2025 at 11:32 PM
#Flu is #rising #rapidly, driven by a #new #variant. Here's what to know

Flu cases are rising across the U.S. due to the H3N2 #subcladeK variant. Vaccines offer partial protection against severe illness, and experts urge shots as holiday travel grows scitechupdates.com/f...
January 14, 2026 at 7:39 AM
🦠 @who.int updates the 2026–2027 #flu vaccine after rapid global spread of A(H3N2) #subcladeK. Experts warn the influenza pandemic threat remains ever-present. 💉🌍

@crick.ac.uk @stjuderesearch.bsky.social @mvankerkhove.bsky.social
📖⬇️ & 🔁🙏
WHO Updates Flu Vaccine In Response To Rapid Spread Of New Variant - Health Policy Watch
The World Health Organization (WHO) has announced its updated recommendations for the 2026-2027 Northern Hemisphere seasonal flu vaccine.
healthpolicy-watch.news
March 1, 2026 at 6:30 PM
Some #flu symptoms are changing as a new variant spreads rapidly. What to expect

As cases reach "very high" levels in Illinois, a mutated and highly contagious variant known as #subcladeK has brought a change in telltale signs of the virus, experts have said.

www.nbcchicago.com/news/local/s...
Some flu symptoms are changing as a new variant spreads rapidly. What to expect
A new flu variant fueling a fast-paced rise in cases across the state has brought with it some symptoms unlike those many have come to associate with the virus.
www.nbcchicago.com
January 7, 2026 at 7:40 PM
The US may get its second severe #flu season, driven by a mutated strain called #subcladeK behind early surges overseas.  Last winter the US had its highest rates of flu hospitalizations in nearly 15 years. At least 280 children died, the most since 2004.
www.cnn.com/2025/11/18/h...
A new virus variant and lagging vaccinations may mean the US is in for a severe flu season | CNN
The United States may be heading into its second severe flu season in a row, driven by a mutated strain called subclade K that’s behind early surges in the United Kingdom, Canada and Japan.
www.cnn.com
November 23, 2025 at 3:25 PM
Brace for impact, e.g. get vaccinated: "In the UK...almost all recent cases (98%) have been #influenza A...among those around 84% are H3N2. Of these, around 87% are subclade K." #vaccines #PublicHealth #subcladeK
gavi.org Gavi @gavi.org · Nov 19
Flu season is due to peak soon in the Northern Hemisphere and a new variant – known as subclade K – is gaining ground. How well will seasonal flu vaccines stand up against this subclade? Linda Geddes explains: bit.ly/3JIQYaJ
Everything you need to know about ‘subclade K’ flu - and vaccine protection against it
As a new branch of H3N2 influenza gains ground, we explore what it means for this season’s flu vaccine.
bit.ly
November 19, 2025 at 8:29 AM
#Flu season in the United States is heating up ...

| #Influenza | #pathogen | #subcladeK | #variant | #publichealth | By @reportergoodman.bsky.social via @cnn.com
www.cnn.com
December 15, 2025 at 2:00 AM
#News Northern Hemisphere in grip of aggressive super flu virus: Seasonal influenza, which is more prevalent in winter when people tend to congregate in warm, indoor spaces, has arrived early in the Northern Hemisphere – marking it as a “super flu”.#Influenza #Flu #SuperFlu #InfluenzaA(H3N2)…
Northern Hemisphere in grip of aggressive super flu virus
Seasonal influenza, which is more prevalent in winter when people tend to congregate in warm, indoor spaces, has arrived early in the Northern Hemisphere – marking it as a “super flu”.#Influenza #Flu #SuperFlu #InfluenzaA(H3N2) #SubcladeK #Covid #Covid-19 #Cold #CommonCold #NorthernHemisphere #illness #sickness
dlvr.it
December 17, 2025 at 3:45 PM
MSN
tinyurl.com
January 30, 2026 at 12:51 PM