Showing 461 - 480 results of 987 for search '"virulent"', query time: 0.05s Refine Results
  1. 461

    The Generation and Characterization of Recombinant Protein and Antibodies of Clostridium perfringens Beta2 Toxin by Jin Zeng, Fuyang Song, Yi Yang, Chenjie Ma, Guangcun Deng, Yong Li, Yujiong Wang, Xiaoming Liu

    Published 2016-01-01
    “…Clostridium perfringens (C. perfringens) beta2 toxin (CPB2) is an important virulent factor of necrotic enteritis in both animals and humans. …”
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  2. 462

    Immunogenicity and Protective Efficacy of a Novel Recombinant BCG Strain Overexpressing Antigens Ag85A and Ag85B by Chun Wang, Ruiling Fu, Zhenhua Chen, Kun Tan, Lingxia Chen, Xindong Teng, Jia Lu, Chunwei Shi, Xionglin Fan

    Published 2012-01-01
    “…In this study, three rBCG strains overexpressing immunodominant antigens Ag85B (rBCG::85B), Ag85A (rBCG::85A), or both (rBCG::AB) of Mycobacterium tuberculosis were constructed, respectively. rBCG strains showed higher level of overexpression of Ag85A and/or Ag85B proteins than BCG containing empty vector pMV261(rBCG::261), which had low levels of endogenous expression of both proteins as expected. rBCG::AB strain could provide the strongest short-term and long-term protection in the lung against intravenous infection with virulent M. tuberculosis than rBCG::261 control and other two rBCG strains overexpressing single antigen. …”
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  3. 463

    The Central Role and Possible Mechanisms of Bacterial DNAs in Sepsis Development by Zhenxing Cheng, Simon T. Abrams, James Austin, Julien Toh, Susan Siyu Wang, Zhi Wang, Qian Yu, Weiping Yu, Cheng Hock Toh, Guozheng Wang

    Published 2020-01-01
    “…Priming animals with bacterial DNAs facilitate other pathological factors, such as LPS and other virulent factors, to induce severe disease and lethality. …”
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  4. 464

    The Effectiveness of β-glucan in the Treatment of Caprine Mastitis Induced by Candida albicans by Saddam H Mahmoud, Shaimaa N Yassein

    Published 2024-12-01
    “…Sixteen goats were intramammarily inoculated with 1.2 × 10⁷ yeast/2 mL of virulent C. albicans. The groups were as follows: Group I (negative control, uninfected), Group II (positive control, infected but untreated), Group III (treated with Nystatin, 200,000 units/half udder/day intramammary for 7 days), Group IV (treated with β-glucan, 5 mg/mL/half udder, administered intramammary every 48 h for three doses), and Group V (treated with a combination of β-glucan and Nystatin; β-glucan was administered as in Group IV, followed 2 h later by Nystatin, 200,000 units/half udder/day for 7 days). …”
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  5. 465

    Clinical assessment and transcriptome analysis of host immune responses in a vaccination-challenge study using a glycoprotein G deletion mutant vaccine strain of infectious laryngo... by Gayathri Gopakumar, Mauricio J. C. Coppo, Mauricio J. C. Coppo, Andrés Diaz-Méndez, Carol A. Hartley, Joanne M. Devlin

    Published 2025-01-01
    “…Tracheal transcriptomes after challenge with virulent ILTV were compared between groups of the non-vaccinated-challenged and the vaccinated-challenged as well as the non-vaccinated-challenged and the uninfected chickens at 4 to 5 days post-challenge. …”
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  6. 466

    Epidemiology of Trypanosomiasis in Wildlife—Implications for Humans at the Wildlife Interface in Africa by Keneth Iceland, Kasozi, Zirintunda, Gerald, Ssempijja, Fred, Buyinza, Bridget, Alzahrani, Khalid J., Matama, Kevin, Nakimbugwe, Helen N., Alkazmi, Luay, Onanyang, David, Bogere, Paul, Ochieng, Juma John, Islam, Saher, Matovu, Wycliff, Nalumenya, David Paul, Batiha, Gaber El-Saber, Osuwat, Lawrence Obado, Abdelhamid, Mahmoud, Shen, Tianren, Omadang, Leonard, Welburn, Susan Christina

    Published 2023
    “…Wildlife animal species serve as long-term reservoirs of infection, but the delicate acquired balance between trypanotolerance and trypanosome challenge can be disrupted by an increase in challenge and/or the introduction of new more virulent species into the ecosystem. There is a need to protect wildlife, animal, and human populations from the infectious consequences of encroachment to preserve and protect these populations. …”
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  7. 467

    Development of a recombinant infectious bronchitis virus vaccine expressing infectious laryngotracheitis virus multiple epitopes by Guanming Shao, Jun Fu, Yun Pan, Shiying Gong, Chaoyi Song, Sheng Chen, Keyu Feng, Xinheng Zhang, Qingmei Xie

    Published 2025-01-01
    “…Clinical observations and scoring of clinical signs in the vaccination-challenge experiment showed that rH120-Δ5ab-gD-T/B provided 90% protection against virulent ILTV, effectively alleviating clinical signs caused by infection with a virulent strain of ILTV. …”
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  8. 468

    Lines resistant to downy mildew in the sunflower genetic collection at VIR by V. A. Gavrilova, T. G. Stupnikova, L. G. Makarova, N. V. Alpatieva, Yu. I. Karabitsina, E. B. Kuznetsova, I. A. Anisimova

    Published 2021-10-01
    “…Thirty-nine lines were resistant in 2016 and 2018; among those, 36 lines were susceptible in 2017. Presumably, a more virulent P. halstedii race became widespread in 2017, compared to the races that prevailed in 2016 and 2018, so the genes that determined resistance in 2016 and 2018 turned out to be ineffective. …”
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  9. 469

    The immunogenicity of PRV ΔgE/TK/UL49.5 three-gene-deleted vaccine in mice by Chenmeng Ding, Yawei Sun, Xianfeng Zhang, Mengmeng Shi, Han Yang, Xin Zhou, Shuangshuang Li, Yongtao Li, Xia Yang, Linyang Yu, Lu Chen

    Published 2025-02-01
    “…Immunized mice could induce high levels of serum neutralization antibodies and immune cytokines, including IFN-γ and IL-4, which could provide complete protection against virulent PRV challenge. No obvious pathological damage was observed in lung, brain and trigeminal ganglion of mice immunized with PRV ΔgE/TK/UL49.5, and the tissue viral load was the lowest. …”
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  10. 470

    Rice blast incidence and morphological variation of Magnaporthe oryzae, Cav. in Ebonyi State, Nigeria by Buliaminu Adeniyi Yekini, Olaitan Chinenye Okechukwu, Clement Gboyega Afolabi

    Published 2024-11-01
    “…Pathogenicity study revealed the five isolates Mo-03, Mo-05, Mo-06, Mo-10 and Mo-17 where more virulent than others. Therefore, the present study recommends that the governments should set up a modality to educate and train rice farmers on disease symptoms and the possible eco-friendly means of control in order to increase rice production both in the study areas and in Nigeria at large.…”
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  11. 471

    Fatal toxoplasmic encephalitis triggered by anti-TNF therapy by Rodrigo A. Montoro, Michael Moran, Katherine A. Overmyer, Andrew Periaccante, Joshua J. Coon, Swapnil Lanjewar, Laura J. Knoll, Rob Striker

    Published 2025-02-01
    “…Second, some strains of T. gondii are more virulent than others. Post-mortem mass spectrometry and proteomic analysis of her cerebrospinal fluid show several T. gondii peptides. …”
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  12. 472

    Genetic characterization of clinical <I>Klebsiella</I> isolates circulating in Novosibirsk by A. V. Bardasheva, N. V. Fomenko, T. V. Kalymbetova, I. V. Babkin, S. O. Chretien, E. V. Zhirakovskaya, N. V. Tikunova, V. V. Morozova

    Published 2021-04-01
    “…By molecular serotyping using the wzi gene sequence, K. pneumoniae strains were assigned to twenty-one K-serotypes with a high proportion of virulent K1- and K2-serotypes. It was found that K. pneumoniae strains isolated from the hospitalized patients had a higher resistance to antibiotics compared to the other Klebsiella species. …”
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  13. 473
  14. 474
  15. 475

    The Global Burden of Emerging and Re-Emerging Orbiviruses in Livestock: An Emphasis on Bluetongue Virus and Epizootic Hemorrhagic Disease Virus by Shanta Barua, Eaftekhar Ahmed Rana, M. Asaduzzaman Prodhan, Syeda Hasina Akter, Jully Gogoi-Tiwari, Subir Sarker, Henry Annandale, Debbie Eagles, Sam Abraham, Jasim M. Uddin

    Published 2024-12-01
    “…Several factors contribute to the recent spread of these viruses such as the distribution of virulent strains by the movement of temperature-dependent <i>Culicoides</i> vectors into new areas due to rapid climate change, the reassortment of viral strains during mixed infections, and unrestricted global trade. …”
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  16. 476
  17. 477

    Four Novel <i>Caudoviricetes</i> Bacteriophages Isolated from Baltic Sea Water Infect Colonizers of <i>Aurelia aurita</i> by Melissa Stante, Nancy Weiland-Bräuer, Urska Repnik, Almut Werner, Marc Bramkamp, Cynthia M. Chibani, Ruth A. Schmitz

    Published 2023-07-01
    “…Here, we aimed to isolate virulent phages targeting bacteria that are part of the <i>A. aurita</i>-associated microbiota. …”
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  18. 478

    Physical Inactivation of Monodon Baculovirus (Mbv), a Pathogenic Virus of Tiger Prawn (Penaeus Monodon Fab.) by M. Alifuddin

    Published 2007-05-01
    “…Transmission trial showed that infection occured 6 hours post inoculation and inclusion bodies were detected at day 5th; showed the virus lost their infectivities or virulent since no inclusion t Ddies as indicator for MBV infection were detected on hepatopancreas of shrimp test. …”
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  19. 479
  20. 480

    Invariant Natural Killer T Cells as Key Players in Host Resistance against Paracoccidioides brasiliensis by Joes Nogueira-Neto, Flavio V. Loures, Alessandra S. Schanoski, David A. G. Andrade, Michelangelo B. Gonzatti, Tania A. Costa, Bruno C. Vivanco, Patrícia Xander, Daniela S. Rosa, Vera L. G. Calich, Alexandre C. Keller

    Published 2021-01-01
    “…To determine whether iNKT cells contribute in vivo to host resistance against P. brasiliensis infection, we infected intratracheally wild-type and Jα18-/- C57BL/6 mouse strains with the virulent Pb18 isolate. iNKT cell deficiency impaired the airway acute inflammatory response, resulting in decreased airway neutrophilia and reduced IFN-γ, KC, and nitric oxide (NO) production. …”
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