Pretreatment with serine protease inhibitors impairs Leishmania amazonensis survival on macrophages by Patrícia de Almeida Machado, Pollyanna Stephanie Gomes, Elaine Soares Coimbra, Herbert Leonel de Matos Guedes

“…Serine proteases emerge as important virulence factors in the Leishmania genus, as they participate in important processes involved in their infectivity, virulence, and survival. …”
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Flow cytometry sorting of cells infected with African swine fever virus by A. S. Pershin, I. V. Shevchenko, T. N. Komova, A. Mazloum, N. N. Vlasova, E. O. Morozova, A. S. Igolkin, K. N. Gruzdev

“…The use of attenuated virus variants enables a thorough  investigation of the factors influencing the virulence of African swine fever virus and the immune  response  to it. …”
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Emergence of mcr-8.1-bearing MDR-hypervirulent Klebsiella pneumoniae ST307 by Jie Sheng, Rory Cave, Mary M. Ter-Stepanyan, Siyu Lu, Yingxiong Wang, Taihang Liu, Hermine V. Mkrtchyan

“…In addition, the Armenian isolates obtained plasmids carrying virulence and AMR genes during the transmission event. …”
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Genome analysis of colistin-resistant Salmonella isolates from human sources in Guizhou of southwestern China, 2019–2023 by Jingtong Wu, Yongxian Wen, Lv You, Xiaoyu Wei, Xiaoyu Wei, Junhua Wang, Ge Zhu, Shijun Li

“…The majority of CL-R isolates contained the virulence factor spvB and a notable diversity in other virulence factors with varied functions. …”
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Isolation, Molecular Characterisation, and Pathogenicity Analysis of a Novel Recombinant ALV‐J Strain Isolated From Chinese Hetian Chickens by Tianyu Lei, Liyun Zhuang, Tingting Dai, Qun Niu, Yinli Bao, Weiming Lin, Cuiqin Huang, Xintian Zheng

“…Recombination with strain ev‐1 and specific 3′ UTR deletions may explain LY2021J's reduced virulence. Continued monitoring and prevention strategies are essential to mitigate ALV‐J's impact.…”
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Antibiotic Resistance Profile of Enterovirulent E. coli Isolates Harboring Broad-Spectrum Beta-Lactamase Genes in Cancer Patients at the Laquintinie Hospital in Douala, Littoral Re... by Michael F. Kengne, Armelle T. Mbaveng, Wiliane J. T. Marbou, Ousenu Karimo, Ballue S. T. Dadjo, Delano G. T. Fonjou, Ornella D. Tsobeng, Victor Kuete

“…Several associations were observed between virulence factors, resistance genes, and the antimicrobial resistance phenotype. …”
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Genome sequence and evaluation of safety and probiotic potential of Lacticaseibacillus paracasei LC86 and Lacticaseibacillus casei LC89 by Ting Chen, Yunjiao Zhao, Yunjiao Zhao, Yixuan Fan, Yao Dong, Zhonghui Gai

“…The genomes of both LC86 and LC89 were devoid of virulence, antibiotic resistance and pathogenicity genes. …”
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Phosphorylation of S‐S‐S Motif in Nuclear Export Protein (NEP) Plays a Critical Role in Viral Ribonucleoprotein (vRNP) Nuclear Export of Influenza A and B Viruses by Xiaokun Liu, Cha Yang, Xian Lin, Xiaomei Sun, Huanchun Chen, Qiang Zhang, Meilin Jin

“…These mutations significantly inhibited vRNPs nuclear export are founded, decreased viral infectivity and attenuated virulence in mice. In addition, inhibition or knockout of ATM or CK2, two predicated Ser/Thr protein kinases that phosphorylate the S‐S‐S motif, impedes vRNP nuclear export and virus replication in cells and reduces the virulence in vivo. …”
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Communication in Fungi by Fabien Cottier, Fritz A. Mühlschlegel

“…We will discuss fungal communication in the context of fundamental biological functions including mating, growth, morphogenesis, and the regulation of fungal virulence determinants. We will address intraspecies but also interkingdom signaling by systematically discussing the sender of the message, the molecular message, and receiver. …”
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The dangerous biology of pathogenic germs by Berche, Patrick

“…The convergence of biotechnologies with other disciplines, including computer science and Artificial Intelligence (AI), may make it possible to carry out dangerous genetic manipulations on pathogenic germs, as the gain-of-function experiments exacerbating virulence, as those carried out on myxoviruses and coronaviruses. …”
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Immunogenicity and safety of a live-attenuated SARS-CoV-2 vaccine candidate based on multiple attenuation mechanisms by Mie Suzuki Okutani, Shinya Okamura, Tang Gis, Hitomi Sasaki, Suni Lee, Akiho Kashiwabara, Simon Goto, Mai Matsumoto, Mayuko Yamawaki, Toshiaki Miyazaki, Tatsuya Nakagawa, Masahito Ikawa, Wataru Kamitani, Shiro Takekawa, Koichi Yamanishi, Hirotaka Ebina

“…While live-attenuated vaccines are a highly effective modality, they pose a risk of adverse effects, including virulence reversion. In the current study, we constructed a live-attenuated vaccine candidate, BK2102, combining naturally occurring virulence-attenuating mutations in the NSP14, NSP1, spike, and ORF7-8 coding regions. …”
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Characterization of Shigella flexneri serotype 6 strains from geographically diverse low- and middle-income countries by Caitlin E. Gabor, Charlotte E. Chong, Jose M. Lemme-Dumit, Tracy H. Hazen, Kate S. Baker, Karen L. Kotloff, Irene N. Kasumba, Sharon M. Tennant, Henry Badji, M. Jahangir Hossain, Richard Omore, Benjamin Ochieng, Alex O. Awuor, Billy Ogwel, Jane Juma, Eileen M. Barry, David A. Rasko

“…We identified Sf6 specific factors, including a potential novel Shigella virulence factor (type II secretion system). Additionally, we identified established Shigella virulence genes (ospG) and metabolic genes (rutABCDEFGR) that were absent in Sf6 strains while present in the majority of 728 non-Sf6 strains. …”
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Genetic Determinants and Biofilm Properties Useful in Estimation of UTI Pathogenicity of the <i>Escherichia coli</i> Strains Isolated from Free-Living Birds by Bartosz Rybak, Tomasz Jarzembowski, Agnieszka Daca, Beata Krawczyk, Lidia Piechowicz

“…<b>Conclusions</b>: In conclusion, the virulence of <i>E. coli</i> strains isolated from free-living birds is significant, and they can be considered environmental reservoirs of pathogenic strains. …”
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Executioner caspases degrade essential mediators of pathogen-host interactions to inhibit growth of intracellular Listeria monocytogenes by Marilyne Lavergne, Raffael Schaerer, Sara De Grandis, Safaa Bouheraoua, Oluwadamilola Adenuga, Tanja Muralt, Tiffany Schaerer, Léa Chèvre, Alessandro Failla, Patricia Matthey, Michael Stumpe, Dieter Kressler, Pierre-Yves Mantel, Michael Walch

“…With that, we uncovered an underappreciated defense barrier and a non-canonical role of executioner caspases to degrade virulence mediators, thus impairing intracellular Listeria growth.…”
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Prevalence and Characterization of Staphylococcus aureus Isolated from Meat and Milk in Northeastern Italy by Debora Pinamonti, Marisa Manzano, Michela Maifreni, Silvia Bianco, Beki Domi, Alessia Ferrin, Jamila Anba-Mondoloni, Julien Dechamps, Roman Briandet, Jasmina Vidic

“…Our findings reveal that foodborne isolates of S. aureus present a considerable threat to consumers due to their production of virulence factors, which enhance their pathogenicity and increase the likelihood of antibiotic treatment failures.…”
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Characterization of pPCP1 Plasmids in Yersinia pestis Strains Isolated from the Former Soviet Union by Chythanya Rajanna, Tamara Revazishvili, Mohammed H. Rashid, Svetlana Chubinidze, Lela Bakanidze, Shota Tsanava, Paata Imnadze, Kimberly A. Bishop-Lilly, Shanmuga Sozhamannan, Henry S. Gibbons, J. Glenn Morris, Alexander Sulakvelidze

“…Given pla's role in Y. pestis virulence, this difference may have important implications for the strain's virulence.…”
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Activation of three targets by a TAL effector confers susceptibility to bacterial blight of cotton by Brendan W. Mormile, Yan Yan, Taran Bauer, Li Wang, Rachel C. Rivero, Sara C. D. Carpenter, Catherine Danmaigona Clement, Kevin L. Cox, Lin Zhang, Xiyu Ma, Terry A. Wheeler, Jane K. Dever, Ping He, Adam J. Bogdanove, Libo Shan

“…Collectively, our findings elucidate the rapid evolution of TALEs in Xanthomonas field isolates and highlight the virulence mechanism wherein TALEs induce multiple S genes to promote pathogenicity.…”
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The burden of group A Streptococcus (GAS) infections: The challenge continues in the twenty-first century by Aswin Thacharodi, Saqib Hassan, Avadh Vithlani, Tawfeeq Ahmed, Sanjana Kavish, Nicole-Mae Geli Blacknell, Ali Alqahtani, Arivalagan Pugazhendhi

“…GAS produces a variety of virulence factors and exotoxins that can lead to deadly infections such as necrotizing fasciitis, impetigo, cellulitis, pneumonia, empyema, streptococcal toxic shock syndrome, bacteremia, and puerperal sepsis. …”
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Effect of neuraminidase inhibitor-resistant mutations on pathogenicity of clade 2.2 A/Turkey/15/06 (H5N1) influenza virus in ferrets. by Natalia A Ilyushina, Jon P Seiler, Jerold E Rehg, Robert G Webster, Elena A Govorkova

“…None of the recombinant H5N1 viruses had attenuated virulence in ferrets inoculated with 10(6) EID(50) dose. …”
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Deletion of ESX-3 and ESX-4 secretion systems in Mycobacterium abscessus results in highly impaired pathogenicity by Wassim Daher, Vincent Le Moigne, Yara Tasrini, Shweta Parmar, Danielle L. Sexton, John Jairo Aguilera-Correa, Valentin Berdal, Elitza I. Tocheva, Jean-Louis Herrmann, Laurent Kremer

“…Abstract Type VII secretion systems participate in protein export, virulence, conjugation, and metabolic regulation. Five subtypes (ESX-1 to ESX-5) exist, each with specific roles and well-characterized secretion profiles in various mycobacterial species. …”
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