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Posts by Miranda

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Efficient replication of influenza D virus in the human airway underscores zoonotic potential | PNAS Influenza D virus (IDV), primarily found in livestock species, has demonstrated cross-species transmission potential, yet its threat to humans rema...

Nice work from Christina Sanders and co. confirming that influenza D viruses from cows & pigs grow really well in human airway cells. And farm workers are clearly exposed to them.
Quite why these viruses haven't started spreading in humans (yet) is a bit of a mystery...
www.pnas.org/doi/10.1073/...

6 hours ago 12 1 0 1

"The bird with four (mating) sexes."
In Zonotrichia albicollis, tan-striped males seek out white-striped females, while white-striped males court tan-striped females.

Morphs are behaviorally "masculine" & "feminine", separate from gonadal sex.

(🧑‍🎨: Rebecca Gelernter, @nearbirdstudios.bsky.social )

4 days ago 265 86 2 10
A panel of immunohistochemistry images showing infection of a panel of IAV viruses (as 6:2 reassortants on a PR8 backbone) in epithelia from the teat and gland cisterns of Aberdeen Angus, Limousin and Holstein Friesian cattle

A panel of immunohistochemistry images showing infection of a panel of IAV viruses (as 6:2 reassortants on a PR8 backbone) in epithelia from the teat and gland cisterns of Aberdeen Angus, Limousin and Holstein Friesian cattle

🚨New pre-print!🚨
Using a panel of different H5N1 clade 2.3.4.4b viruses and human seasonal influenza, and mammary explants from common beef and dairy cattle breeds, we add to the growing data showing that H5N1 spillovers into cattle should be seen as an ongoing risk
www.biorxiv.org/content/10.6...

4 days ago 33 15 2 1

In collaboration with Nicola Muller, and led by @lambod50.bsky.social, we have a new preprint out that's all about reassortment! www.biorxiv.org/content/10.6...

Using TargetedBeast, we built massive (9000 tips!) Bayesian phylogenies of North American H5Nx viruses, and inferred the host...

1 day ago 22 10 1 0
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Non-canonical proteolytic activation of RNase L by SARS-CoV-2 3CLpro offsets inactivation of OAS1 p46 antiviral signaling Bell et al. demonstrate that SARS-CoV-2 3C-like main protease (3CLpro/Mpro) antagonizes the OAS-RNase L antiviral pathway by cleaving off the prenylated-Cys397 anchor from OAS1 p46, displacing it from...

🚨 New publication 🚨
Our collaboration with the Overall lab at UBC has yielded new insights from our latest study on SARS-CoV-2 and its impact on the human immune system. Incredible work by all the trainees. #LoveVirology
www.cell.com/cell-reports...

@cp-cellreports.bsky.social

(1/3)

1 day ago 9 5 3 0
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New transcription signals in SARS-CoV-2 reshape virus–host interactions Non-spike changes driving SARS-CoV-2 fitness remain undiscovered. This Primer comments on two PLOS Biology papers that show that evolutionary N gene mutations create a transcription-regulating sequenc...

SUPER COOL to have my recent paper highlighted by CoV transcription legends, Drs Isabel Sola & Sonia Zuñiga in a PLoS Bio Primer.

A much better read than the AI summary of the paper 💥

journals.plos.org/plosbiology/...

2 days ago 4 2 0 0
A woodcut of a highland cow peering through a square frame (image credit Ed Hutchinson)

A woodcut of a highland cow peering through a square frame (image credit Ed Hutchinson)

🚨New pre-print!🚨
Influenza viruses need proteases to become infectious. Here, we identify the proteases needed for influenza D virus entry, and show that proteases in the human airway are more than capable of activating this non-human virus
www.biorxiv.org/content/10.6...

4 days ago 20 8 1 0
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Synergy between HA cleavage site sequence and NA-mediated plasminogen recruitment as a virulence mechanism for low-pathogenic avian influenza | mBio Avian influenza viruses are divided into high or low pathogenicity based on the sequence of their hemagglutinin (HA) and their lethality in chickens. The majority of AIV strains circulating in the wil...

Peer-reviewed version of Hui Min's paper on NA-mediated PLG recruitment as a virulence mechanism for LPAIVs is out in @mbio.bsky.social journals.asm.org/doi/10.1128/...

6 days ago 1 1 0 0
An illustration of an apical region of an animal cell in cross section, shown crowded with individual molecules. The plasma membrane is densely occupied by influenza virus glycoproteins, and from the surface bud influenza virions with different morphologies (L-R): spherical, bacilliform, filamentous with a genome, filamentous and empty, filamentous with a helical inner layer, and filamentous with a cofilactin cytoskeleton.

An illustration of an apical region of an animal cell in cross section, shown crowded with individual molecules. The plasma membrane is densely occupied by influenza virus glycoproteins, and from the surface bud influenza virions with different morphologies (L-R): spherical, bacilliform, filamentous with a genome, filamentous and empty, filamentous with a helical inner layer, and filamentous with a cofilactin cytoskeleton.

🚨New pre-print!🚨
Because influenza virions are highly variable in form no single method can show their molecular architecture in detail. Here, we integrate multiple structural and compositional approaches to identify new features of these beautiful virus particles
www.biorxiv.org/content/10.6...

4 days ago 69 26 3 2
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Can a single viral protein change how you think 🧠🧐? We think so! Our new preprint shows how herpes simplex virus protein pUL56 turns off neuronal electrical activity.

www.biorxiv.org/cgi/content/...

🟦🧵👇

1 week ago 16 6 2 1
Graph of receptor binding curves showing an ancestral and recent H5N1. The ancestral virus does not bind NeuGc receptor well, whereas the recent virus birds NeuGc and NeuAc containing receptors equally.

Graph of receptor binding curves showing an ancestral and recent H5N1. The ancestral virus does not bind NeuGc receptor well, whereas the recent virus birds NeuGc and NeuAc containing receptors equally.

Really excited to be able to share our latest preprint, describing how during its evolution in cattle, H5N1 has got better at using a type of alternative receptor that's abundant in cows, but not found in humans and birds.

www.biorxiv.org/content/10.6...

2 weeks ago 135 50 3 6
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Evolution of a truncated nucleocapsid protein enhances SARS-CoV-2 fitness by suppressing antiviral responses SARS-CoV-2 has evolved to optimize its replication fitness in the human host. This study shows that a nucleocapsid gene mutation enhances production of a truncated protein that boosts viral fitness in...

journals.plos.org/plosbiology/...

2 weeks ago 18 9 2 0
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These small African antelopes may help mpox spread Researchers find evidence that duikers, hunted and eaten across sub-Saharan Africa, can harbor the deadly virus

Nice coverage by @kakape.bsky.social in @science.org of our preprint, where we present data showing orthopoxviruses, including MPXV, infect duikers, which are popular bushmeat in many mpox endemic regions. Highlights lots more about orthopoxvirus ecology to explore:
www.science.org/content/arti...

3 weeks ago 28 11 2 0
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Host cell remodeling via cyclin dependent kinases drives Ebola virus replication and transcription.

www.biorxiv.org/content/10.6...

Check out our latest preprint.

Great work by @tshamorkina.bsky.social. Thanks to co-authors Danni Snikkers and @hecklab.bsky.social

3 weeks ago 22 9 1 0
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We are excited to share our new paper in Molecular Cell uncovering how the viral lncRNA RNA2.7 reshapes host cell biology!

sciencedirect.com/science/authShare/S1097276526001565/20260324T143400Z/1?md5=16c84051c2f253c4665427f837a529d3&dgcid=author

A thread 🧵

3 weeks ago 15 8 1 0

Well done!! Interesting stuff!

3 weeks ago 1 0 0 0
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Our latest work out of the @thegreylab.bsky.social (also my first first-author paper) identifying exogenous DNA as the main agonist triggering cGAS during HCMV infection is now available as a pre-print.

3 weeks ago 1 1 1 0

cGAS activation during human cytomegalovirus infection is driven by exogenous DNA www.biorxiv.org/content/10.64898/2026.03...

3 weeks ago 4 1 0 1
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Lessons learned from bat and rodent reservoir hosts of zoonotic viruses Zoonotic virus emergence is a continued threat to global health, though more than two-thirds originate in wildlife. Within natural reservoirs, bats an…

🚨 Just released! Take a look. We discuss lessons learned from rodents and bats where some species harbour zoonotic viruses.

www.sciencedirect.com/science/arti...

3 weeks ago 8 3 0 0
Title + abstract of the preprint

Title + abstract of the preprint

Excited to present a new preprint with @nkgarg.bsky.social: presenting usage statistics and observational findings from Paper Skygest in the first six months of deployment! 🎉📜

arxiv.org/abs/2601.04253

3 months ago 169 50 4 5
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Defective RNA Polymerase III sensing of mitochondrial DNA in pulmonary epithelial cells impairs type I IFN immunity to SARS-CoV-2 | PNAS The clinical spectrum of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection ranges from asymptomatic cases to critical COVID-19...

📢 New research by #CiViA members M Møhlenberg, T Mogensen et al. published in @pnas.org: "Defective RNA Polymerase III sensing of mitochondrial DNA in pulmonary epithelial cells impairs type I IFN immunity to SARS-CoV-2"
www.pnas.org/doi/10.1073/...

#Biomedicine #COVID19 #Immunology #InnateImmunity

1 month ago 5 2 0 1

New preprint! Current T7-based MNV reverse genetics can be performed by co-transfecting plasmids encoding T7 RNA polymerase and vaccinia capping enzymes. We see a further 100-1000-fold boost in titres by incorporating CD300lf-expressing BSR-T7 cells into this system. www.biorxiv.org/content/10.6...

1 month ago 6 3 1 1
Conceptual framework for relating spillover rate and the past spillover window to host jump risk. In order to successfully host jump, a pathogen must overcome barriers to spillover and barriers to sustained transmission in the novel host. Pathogens may or may not be limited at either step in this process, leading conceptually to four classes of nonnative pathogens (A–D). In practice, and in the authors' model, spillover limitation and transmission limitation are continuous traits meaning that there is no discrete separation between the “types” of pathogens shown in A–D but thy discuss pathogens in this framework because it is useful for illustration.

Conceptual framework for relating spillover rate and the past spillover window to host jump risk. In order to successfully host jump, a pathogen must overcome barriers to spillover and barriers to sustained transmission in the novel host. Pathogens may or may not be limited at either step in this process, leading conceptually to four classes of nonnative pathogens (A–D). In practice, and in the authors' model, spillover limitation and transmission limitation are continuous traits meaning that there is no discrete separation between the “types” of pathogens shown in A–D but thy discuss pathogens in this framework because it is useful for illustration.

Pathogen host-jumps pose major risks to health, but how can we predict them? This study shows that #pathogen novelty, rather than #spillover rate, is a stronger predictor of host-jump risk, so we should monitor emerging pathogens with limited spillover histories @plosbiology.org 🧪 plos.io/4ss5WCY

1 month ago 10 2 1 1
Species phylogeny, genomic and transcriptomic data, and Ne proxies used in the present study. Left: Phylogenetic tree of the 100 metazoan species considered. Middle: Available genome and transcriptome datasets of each species concerned, including CAGE-seq, 3′-end-seq, RNA-seq, coding genes, and BUSCO genes. Right: Ne and proxies.

Species phylogeny, genomic and transcriptomic data, and Ne proxies used in the present study. Left: Phylogenetic tree of the 100 metazoan species considered. Middle: Available genome and transcriptome datasets of each species concerned, including CAGE-seq, 3′-end-seq, RNA-seq, coding genes, and BUSCO genes. Right: Ne and proxies.

What is the evolutionary significance of alternative #transcription initiation, #splicing & #polyadenylation? This study of 75 metazoan species suggests that most transcript diversity reflects deleterious RNA processing errors rather than adaptive function @plosbiology.org 🧪 plos.io/3Pcs2e6

1 month ago 11 4 0 0
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LRP8 is a functional receptor for yellow fever virus - Nature Microbiology The human LRP8 protein is a receptor for yellow fever viruses (YFVs). Knockdown of the mosquito orthologue reduces YFV infection in mosquitoes, whereas overexpression of human LRP8 aggravates YFV infe...

LRP8 is a functional receptor for yellow fever virus

www.nature.com/articles/s41...

1 month ago 3 3 0 0
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Influenza A virus polymerase co-opts distinct sets of host proteins for RNA transcription or replication Influenza A virus hijacks host proteins to support its life cycle, including factors co-opted to the viral polymerase. Rasmussen et al. identify distinct sets of host factors that support polymerase replication or transcription activity, revealing potential new antiviral targets.

Influenza A virus polymerase co-opts distinct sets of host proteins for RNA transcription or replication

1 month ago 3 2 0 0
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Germ factories or immune boot camps? Infection and immunity in childcare settings | Clinical Microbiology Reviews SUMMARYChildcare outside the home is a common experience for many children in high-income countries. It is associated with an increase in the incidence of infectious diseases—not just for the child bu...

Have you ever wondered why children starting nursery/daycare pick up so many germs? I certainly did, and with a crack team of parent-scientists/clinicians, we set out to answer that question. Is childcare a germ factory or an immune bootcamp? journals.asm.org/doi/10.1128/...

1 month ago 29 17 3 1

Host innate immune response profiling reveals hidden viral infections across diverse animal species www.biorxiv.org/content/10.64898/2026.03...

1 month ago 18 7 0 0
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ZAP targets aberrant mRNA transcripts encoding proteins with defective signal peptides for degradation - The EMBO Journal The endoplasmic reticulum (ER) is an important site for accurate folding and processing of secretory and membrane proteins. Signal peptides within such proteins are recognized by the signal recognitio...

ZAP targets aberrant mRNA transcripts encoding proteins with defective signal peptides for degradation
@colinwu.bsky.social and coworkers
link.springer.com/article/10.1...

1 month ago 4 2 0 0
The conserved human astrovirus-receptor interface reveals a targetable vulnerability for antiviral development - Nature Communications In this study, the authors report the structure of a human astrovirus spike protein bound to the FcRn receptor and show that clinically approved FcRn inhibitors potently inhibit virus infection via co...

#NatMicroPicks

A chink in astrovirus armour 🦠💉

Human astrovirus serotypes 1–8 interact with cells all bind the FcRn receptor through a conserved spike‑protein surface depression revealing a potential antiviral treatment strategy.

#MicroSky

www.nature.com/articles/s41...

1 month ago 1 1 0 0