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| Open AccessEnhanced CD95 and interleukin 18 signalling accompany T cell receptor Vβ21.3+ activation in multi-inflammatory syndrome in children
Multi-Inflammatory Syndrome in Children (MIS-C) is a severe post-infectious presentation related to SARS-CoV-2 infection. Here authors used multi-omics approaches to characterise MIS-C cases and found increased CD95 and IL-18 signalling accompanying the expansion of TCR Vβ 21.3+ T cells.
- Zhenguang Zhang
- , Iain R. L. Kean
- & Nazima Pathan
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| Open AccessOriginal COVID-19 priming regimen impacts the immunogenicity of bivalent BA.1 and BA.5 boosters
Waning immunity and the emergence of the SARS-CoV-2 Omicron lineage led to reduced vaccine effectiveness and required vaccine updates. Here, the authors assess how different priming regimens affect the immunogenicity of BA.1 and BA.5 bivalent boosters.
- Luca M. Zaeck
- , Ngoc H. Tan
- & Rory D. de Vries
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| Open AccessMycobacterium tuberculosis suppresses host antimicrobial peptides by dehydrogenating L-alanine
In this work, authors mechanistically investigate the reduced induction of antimicrobial peptides in Mycobacterium tuberculosis infected macrophages.
- Cheng Peng
- , Yuanna Cheng
- & Lin Wang
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| Open AccessSustained IFN signaling is associated with delayed development of SARS-CoV-2-specific immunity
The role of IFN signaling in SARS-CoV-2 infection and outcome is still debated. Here, the authors longitudinally profiled plasma samples from hospitalized patients and show that a persistent inflammatory response is linked to delayed generation of adaptive immunity and increased risk of death when coupled with severe infection.
- Elsa Brunet-Ratnasingham
- , Sacha Morin
- & Daniel E. Kaufmann
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| Open AccessDynamic microfluidic single-cell screening identifies pheno-tuning compounds to potentiate tuberculosis therapy
Tuberculosis is a major global health threat. Here, the authors develop a single-cell drug discovery approach and identify a compound that tunes bacterial phenotypic variation. This enhances the activity of anti-tubercular drugs against the pathogen.
- Maxime Mistretta
- , Mena Cimino
- & Giulia Manina
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| Open AccessImportance of social inequalities to contact patterns, vaccine uptake, and epidemic dynamics
Contact patterns influence the spread of infectious diseases, but mathematical models of epidemics typically only account for age differences in contacts. Here, the authors investigate the importance of other sociodemographic characteristics in shaping contact patterns and vaccine uptake using survey data from Hungary.
- Adriana Manna
- , Júlia Koltai
- & Márton Karsai
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Article
| Open AccessSerological evidence of zoonotic filovirus exposure among bushmeat hunters in Guinea
In a serological analysis, Bore et al. utilise serum samples, collected from a cohort of individuals associated with bushmeat hunting and butchering, in the forested region of Guinea, a region close to the epicentre of the 2013–2016 West Africa Ebola virus disease epidemic.
- Joseph Akoi Boré
- , Joseph W. S. Timothy
- & Miles W. Carroll
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| Open AccessADAM9 promotes type I interferon-mediated innate immunity during encephalomyocarditis virus infection
Mice lacking A Disintegrin and Metalloproteinase 9 (ADAM9) do not mount Type 1 interferon responses against encephalomyocarditis infection. Here, Bazzone et al show that ADAM9 regulates innate immune responses via by MDA5.
- Lindsey E. Bazzone
- , Junji Zhu
- & Evelyn A. Kurt-Jones
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Article
| Open AccessThe vacuolar fusion regulated by HOPS complex promotes hyphal initiation and penetration in Candida albicans
The transition between yeast and hyphae is crucial for the pathogenicity of Candida albicans. Here, Liu et al. show that vacuole fusion is active during hyphal extension and that large vacuoles increase the mechanical forces of hyphae penetrating into organs.
- Yu Liu
- , Ruina Wang
- & Lan Yan
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Article
| Open AccessPremature skewing of T cell receptor clonality and delayed memory expansion in HIV-exposed infants
Here, Dzanibe et al show that in utero HIV/ARV exposure sequentially disrupts infant immunologic trajectories, beginning with NK cells that predict vaccine antibody responses and followed by delayed T cell memory maturation linked to skewed TCR clonality.
- Sonwabile Dzanibe
- , Aaron J. Wilk
- & Clive M. Gray
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Article
| Open AccessSevere outcomes of malaria in children under time-varying exposure
Severe pediatric malaria remains a concern in many countries. Here, the authors use an individual-based modeling approach to evaluate the relationship between malaria prevalence and incidence of malaria pediatric hospitalizations, and show how unsteady transmission patterns affect hospitalization rates.
- Pablo M. De Salazar
- , Alice Kamau
- & Melissa A. Penny
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Article
| Open AccessSafety, immunogenicity and efficacy of the self-amplifying mRNA ARCT-154 COVID-19 vaccine: pooled phase 1, 2, 3a and 3b randomized, controlled trials
In this randomized, controlled integrated phase 1/2/3a/3b clinical trial, the authors show that the self-amplifying mRNA COVID-19 vaccine ARCT-154 shows good immunogenicity and is safe and efficient against COVID-19 (57% against any COVID-19, and 95% against severe COVID-19).
- Nhân Thị Hồ
- , Steven G. Hughes
- & Xuan-Hung Nguyen
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Article
| Open AccessGene editing for latent herpes simplex virus infection reduces viral load and shedding in vivo
The main challenge for anti-HSV therapy is to target latent virus in ganglionic neurons. Here, the authors report a well-tolerated anti-HSV gene editing approach against HSV which targets latent HSV genomes and leads to reductions of ganglionic viral loads, and viral shedding upon reactivation in mouse models.
- Martine Aubert
- , Anoria K. Haick
- & Keith R. Jerome
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Article
| Open AccessRapid expansion and international spread of M1UK in the post-pandemic UK upsurge of Streptococcus pyogenes
Exponential growth of toxigenic Streptococcus pyogenes M1UK lineage accounted for most of the 2022/2023 invasive infection upsurge in the UK. Authors provide evidence that M1UK first emerged in 2008, has genetic evidence of enhanced fitness, and has disseminated to 3 continents.
- Ana Vieira
- , Yu Wan
- & Shiranee Sriskandan
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| Open AccessAssessment of three antibiotic combination regimens against Gram-negative bacteria causing neonatal sepsis in low- and middle-income countries
High levels of extended spectrum beta-lactamase (ESBL) and carbapenemase encoding genes were detected in bacterial isolates causing neonatal sepsis in LMICs. Authors assess the in vitro activity of three antibiotics (fosfomycin, flomoxef and amikacin) in combination against ESBL-producing Klebsiella pneumoniae and Escherichia coli isolates.
- Biljana Kakaraskoska Boceska
- , Tuba Vilken
- & Herman Goossens
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Article
| Open AccessHerpes simplex encephalitis due to a mutation in an E3 ubiquitin ligase
Encephalitis is a rare and severe complication of Herpes Simplex type 1 infection. Here, Bibert et al describe a genetic variant in a 2-year-old affected child that impairs interferon production in neuronal cells and enhances viral replication.
- Stéphanie Bibert
- , Mathieu Quinodoz
- & Pierre-Yves Bochud
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| Open AccessHyphal Als proteins act as CR3 ligands to promote immune responses against Candida albicans
Integrin CR3 (CD11b/CD18) is a receptor responsible for recognizing fungal β-glucan. Here, Zhou et al show that the Candida albicans Als family proteins are ligands for the CD11b I domain; an interaction which synergizes with β-glucan to activate CR3.
- Tingting Zhou
- , Norma V. Solis
- & Haoping Liu
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| Open AccessSputum culture reversion in longer treatments with bedaquiline, delamanid, and repurposed drugs for drug-resistant tuberculosis
In patients with drug-resistant tuberculosis who receive treatment with new and repurposed drugs, indicators of advanced disease and delayed conversion were associated with an increased risk of reversion. These factors may be targets for close monitoring.
- Sooyeon Kho
- , Kwonjune J. Seung
- & Molly Franke
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| Open AccessContemporary HIV-1 consensus Env with AI-assisted redesigned hypervariable loops promote antibody binding
HIV-1 Env consensus sequences that reflect recent sequences for clades B, C, and CRF01_AE were redesigned using AI-assisted methods to shorten hypervariable loops and limit strain-specific targeting. The modified Envs show improved antibody binding.
- Hongjun Bai
- , Eric Lewitus
- & Morgane Rolland
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Article
| Open AccessTemporal shifts in 24 notifiable infectious diseases in China before and during the COVID-19 pandemic
Public health and social measures for COVID-19 also impacted the incidence of other infectious diseases. In this study, the authors characterise the impacts of these measures on 24 notifiable infectious diseases in China until December 2023.
- Kangguo Li
- , Jia Rui
- & Tianmu Chen
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| Open AccessPopulation pharmacokinetic modelling of primaquine exposures in lactating women and breastfed infants
Primaquine treatment for breastfeeding mothers is currently not recommended. Here, the authors develop a pharmacokinetic model to predict drug exposure of infants and show that ingesting breastmilk from mothers treated with primaquine results in <1% of maternal drug exposure. This suggests that primaquine should not be restricted in post-neonatal breastfeeding women as standard doses are unlikely to cause adverse events in infants.
- Thanaporn Wattanakul
- , Mary Ellen Gilder
- & Richard M. Hoglund
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| Open AccessPredicting vaccine effectiveness for mpox
Here, based on a systematic review and meta-analysis, the authors analyze the relationship between vaccine immunogenicity and vaccine protection against mpox and predict the durability of protection after vaccination. This helps inform the optimal vaccine deployment in a health emergency.
- Matthew T. Berry
- , Shanchita R. Khan
- & David S. Khoury
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Article
| Open AccessSARS-CoV-2 Mpro responds to oxidation by forming disulfide and NOS/SONOS bonds
The main protease, a key enzyme of SARS-CoV-2, can protect itself from oxidative damage. Here, Reinke, Schubert, and colleagues used XFEL radiation to image the enzyme, revealing the disulfide and NOS/SONOS bonds that form in response to oxygen.
- Patrick Y. A. Reinke
- , Robin Schubert
- & Thomas J. Lane
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| Open AccessA comprehensive genetic map of cytokine responses in Lyme borreliosis
Common genetic variants can affect an individual’s immune response to pathogens. Here, the authors uncover and characterize variants regulating cytokine responses in Lyme Borreliosis in 1,060 patients.
- Javier Botey-Bataller
- , Hedwig D. Vrijmoeth
- & Yang Li
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Article
| Open AccessPersistent and multiclonal malaria parasite dynamics despite extended artemether-lumefantrine treatment in children
Standard diagnostics are often not able to fully capture submicroscopic parasite dynamics after treatment with antimalarials. In this longitudinal analysis of molecular markers of malaria parasitemia in an Ugandan cohort, authors describe persistence of markers following antimalarial therapy with dynamic and complex multiclonal infections in the initial and post-treatment periods.
- Justin Goodwin
- , Richard Kajubi
- & Sunil Parikh
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| Open AccessSeasonal antigenic prediction of influenza A H3N2 using machine learning
This study presents a machine learning model that accurately predicts seasonal antigenic changes of influenza A H3N2 using genetic data. The model’s predictions can aid influenza surveillance, vaccine strain selection, and public health management.
- Syed Awais W. Shah
- , Daniel P. Palomar
- & Matthew R. McKay
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| Open AccessIL-17C is a driver of damaging inflammation during Neisseria gonorrhoeae infection of human Fallopian tube
In pelvic inflammatory disease, host immune responses to Neisseria gonorrhoeae damage Fallopian tube tissue and cause infertility. Here, Garcia et al. show that the cytokine IL-17C induces inflammatory responses, and peptidoglycan fragments reduce transcripts related to tissue integrity.
- Erin M. Garcia
- , Jonathan D. Lenz
- & Joseph P. Dillard
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Article
| Open AccessModelling the transmission dynamics of H9N2 avian influenza viruses in a live bird market
H9N2 avian influenza is a virus with zoonotic potential that is common in poultry in live bird markets in Asia. In this study, the authors use mathematical modelling to characterise transmission of H9N2 in live bird markets in Bangladesh and assess the effectiveness of potential interventions to reduce its circulation.
- Francesco Pinotti
- , Lisa Kohnle
- & Guillaume Fournié
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| Open AccessConcomitant human papillomavirus (HPV) vaccination and screening for elimination of HPV and cervical cancer
Here the authors report baseline results of a population-based trial testing concomitant human papillomavirus (HPV) vaccination and HPV-based screening of young women in Sweden and, using a transmission model, suggest that this approach may reduce high-risk HPV infections.
- Laila Sara Arroyo Mühr
- , Andrea Gini
- & Joakim Dillner
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Article
| Open AccessAirway epithelial CD47 plays a critical role in inducing influenza virus-mediated bacterial super-infection
During the influenza pandemic, a large number of deaths resulted from secondary bacterial pneumonia caused by common upper respiratory tract bacteria, such as Staphylococcus. Here, Moon et al, find that the interaction between airway epithelial CD47 and the pathogenic bacterial FnBP is critical in causing bacterial superinfection.
- Sungmin Moon
- , Seunghan Han
- & Ji-Hwan Ryu
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Article
| Open AccessA secondary mechanism of action for triazole antifungals in Aspergillus fumigatus mediated by hmg1
Triazole antifungals are widely used and exert their action by inhibiting ergosterol biosynthesis. Here, Rybak et al show that these drugs both inhibit ergosterol biosynthesis and induce accumulation of pathway intermediates that directly induce inhibition of sterol synthesis.
- Jeffrey M. Rybak
- , Jinhong Xie
- & Jarrod R. Fortwendel
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Article
| Open AccessCD8+ T-cell responses towards conserved influenza B virus epitopes across anatomical sites and age
Influenza B viruses are linked to significant morbidity and mortality, and yet their immunobiology is comparatively poorly understood. Here Menon et al identify influenza B virus-specific CD8+ T cell epitopes and characterise these in adults, children and the elderly.
- Tejas Menon
- , Patricia T. Illing
- & Katherine Kedzierska
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| Open AccessDynamic diversity of SARS-CoV-2 genetic mutations in a lung transplantation patient with persistent COVID-19
In this study, the authors report the case of a patient who underwent lung transplantation and subsequently developed COVID-19 that resulted in persistent infection. Following antiviral treatment, SARS-CoV-2 (BA.5) showed dynamic genetic diversity with remdesivir resistant mutations leading to enhanced fusogenicity.
- Hidetoshi Igari
- , Seiichiro Sakao
- & Eiji Ido
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| Open AccessReservoir displacement by an invasive rodent reduces Lassa virus zoonotic spillover risk
Mastomys natalensis is a rodent species native to West Africa that is the primary reservoir host for Lassa virus. Here, the authors investigate whether the invasive rodent Rattus rattus decreases M. natalensis density and could therefore indirectly decrease zoonotic transmission of Lassa virus to humans.
- Evan A. Eskew
- , Brian H. Bird
- & Scott L. Nuismer
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| Open AccessThe hinge-engineered IgG1-IgG3 hybrid subclass IgGh47 potently enhances Fc-mediated function of anti-streptococcal and SARS-CoV-2 antibodies
Here, the authors elongated the hinge structure of IgG1 monoclonal antibodies. The modified IgG1-IgG3 hybrid subclass showed enhanced Fc-mediated function compared to IgG1 in two distinct biological systems, Streptococcus pyogenes and SARS-CoV-2.
- Arman Izadi
- , Yasaman Karami
- & Pontus Nordenfelt
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| Open AccessMucosal prime-boost immunization with live murine pneumonia virus-vectored SARS-CoV-2 vaccine is protective in macaques
Immunization via the respiratory route is predicted to increase the effectiveness of SARS-CoV-2 vaccines. Here, Kaiser et al. describe a murine pneumonia virus vectored vaccine expressing spike protein, and show that intranasal immunization of male rhesus macaques provides good mucosal and systemic immunogenicity and efficacy.
- Jaclyn A. Kaiser
- , Christine E. Nelson
- & Cyril Le Nouën
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Article
| Open AccessBat-borne H9N2 influenza virus evades MxA restriction and exhibits efficient replication and transmission in ferrets
In this study, the authors report that bat H9N2 influenza A virus replicates and transmits in ferrets, efficiently infects human lung explant cultures, evades MxA antiviral activity in mice, and has low antigenic similarity to seasonal N2, meeting pre-pandemic criteria.
- Nico Joel Halwe
- , Lea Hamberger
- & Martin Beer
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Article
| Open AccessLoss of TRIM29 mitigates viral myocarditis by attenuating PERK-driven ER stress response in male mice
Knowledge of pathogenesis mechanisms and effective treatments for viral myocarditis is lacking. Here, Wang et al show that loss of TRIM29 and PERK inhibitor mitigate viral myocarditis by attenuating PERK-driven ER stress and ROS responses in male mice.
- Junying Wang
- , Wenting Lu
- & Junji Xing
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Article
| Open AccessOverlapping Streptococcus pyogenes and Streptococcus dysgalactiae subspecies equisimilis household transmission and mobile genetic element exchange
Streptococcus dysgalactiae subsp. equisimilis is closely related to Streptococcus pyogenes and colonises the same sites in humans. This study examines cross-species transmission interactions and genetic exchange in a high disease burden setting.
- Ouli Xie
- , Cameron Zachreson
- & Steven Y. C. Tong
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Article
| Open AccessA giant virus infecting the amoeboflagellate Naegleria
This is the first report on a virus infecting the amoeboflagellate Naegleria, including the lethal human pathogen N. fowleri. The new virus isolate, Catovirus naegleriensis (Naegleriavirus, NiV), shows hallmarks of giant viruses (Nucleocytoviricota) and unique adaptations to its protist host.
- Patrick Arthofer
- , Florian Panhölzl
- & Matthias Horn
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| Open AccessLong-term monitoring of SARS-CoV-2 seroprevalence and variants in Ethiopia provides prediction for immunity and cross-immunity
Detailed data on SARS-CoV-2 dynamics in Africa remain limited. Here, the authors use longitudinal serology and SARS-CoV-2 sequencing data from Ethiopia between August 2020 and July 2022 to characterise circulating variants, identify infection pathways, and explore cross-immunity properties.
- Simon Merkt
- , Solomon Ali
- & Andreas Wieser
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Article
| Open AccessEstimating the effects of temperature on transmission of the human malaria parasite, Plasmodium falciparum
Malaria transmission is affected by temperature but this relationship is not well characterised. Here, the authors experimentally determine the effect of temperature on parasite development in the mosquito and model how it impacts malaria transmission in Kenya under current and future climate scenarios.
- Eunho Suh
- , Isaac J. Stopard
- & Matthew B. Thomas
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Article
| Open AccessMulti-omics analysis reveals COVID-19 vaccine induced attenuation of inflammatory responses during breakthrough disease
Here, Drury et al study gene, microRNA and protein expression during COVID-19, in a randomised controlled trial of ChAdOx1 nCoV19 vaccine and find that ChAdOx1 nCoV-19 attenuates the inflammatory response, thought to be the basis for severe COVID-19.
- Ruth E. Drury
- , Susana Camara
- & Daniel O’Connor
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Article
| Open AccessMonkeypox virus genomic accordion strategies
The 2023 monkeypox outbreak was caused by a subclade IIb monkeypox virus (MPXV). Here, using advanced sequencing techniques, the authors identify variations on low-complexity regions of the MPXV genome and describe their potential as evolutionary drivers.
- Sara Monzón
- , Sarai Varona
- & Gustavo Palacios
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Article
| Open AccessInflammation and cytomegalovirus viremia during pregnancy drive sex-differentiated differences in mortality and immune development in HIV-exposed infants
HIV exposed but uninfected infants may face an increased risk of serious infection and mortality. In this work, the authors utilise a cohort from rural Zimbabwe to explore the biological mechanisms underlying infant mortality.
- Ceri Evans
- , Kuda Mutasa
- & Andrew J. Prendergast
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| Open AccessImprovement of immune dysregulation in individuals with long COVID at 24-months following SARS-CoV-2 infection
Post-acute sequelae of COVID (PASC) or long-COVID can affect a proportion of those infected but this is not well understood. Here the authors perform a single cell transcriptomics analysis of immune cells from long-COVID patients at 24 months and find that cell changes observed at 3 and 8 months do not persist to 24 months.
- Chansavath Phetsouphanh
- , Brendan Jacka
- & Gail V. Matthews
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Article
| Open AccessEmerging variants develop total escape from potent monoclonal antibodies induced by BA.4/5 infection
Many emerging SARS-CoV-2 variants partially escape the humoral immune response. Here, Liu et al. characterize 28 antibodies from BA.4/5 breakthrough infections and find attrition of neutralization and complete loss of function for variants with Spike mutations at positions 455 and 456.
- Chang Liu
- , Raksha Das
- & Gavin R. Screaton
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Article
| Open AccessUltrasensitive single-step CRISPR detection of monkeypox virus in minutes with a vest-pocket diagnostic device
The recent monkeypox outbreak highlighted the need for rapid and accurate diagnosis of this disease. Here, authors develop an ultrasensitive and streamlined CRISPR assay using miniaturized device, which can detect monkeypox virus in rash fluid swab, oral swab, saliva, and urine within 15 minutes.
- Yunxiang Wang
- , Hong Chen
- & Shengqi Wang
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| Open AccessPerinatal outcomes after admission with COVID-19 in pregnancy: a UK national cohort study
The impacts of maternal SARS-CoV-2 infection on newborns are not well understood. Here, the authors perform a national cohort study using data on births in the UK from March 2020—March 2022 and find that moderate to severe maternal COVID-19 was associated with adverse perinatal outcomes.
- Hilde Marie Engjom
- , Rema Ramakrishnan
- & Marian Knight