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  1. 2521
    “…The protected monkeys had a median anti-repeat titer of 97,841 compared to 14,822 in the non-protected monkeys. …”
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    Protective Efficacy of a Plasmodium vivax Circumsporozoite Protein-Based Vaccine in Aotus nancymaae Is Associated with Antibodies to the Repeat Region
  2. 2522
    “…Under the above conditions, the α-ketoisocaproate titer reached 12.7 g/L with a leucine conversion rate of 97.8%. …”
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    One-step biosynthesis of α-ketoisocaproate from l-leucine by an Escherichia coli whole-cell biocatalyst expressing an l-amino acid deaminase from Proteus vulgaris
  3. 2523
    “…With a two-phase pH fermentation strategy, the cultivation of the optimized strain resulted in a final pinocembrin titer of 67.81 mg/L. The results and engineering strategies demonstrated here would hold promise for the titer improvement of other flavonoids.…”
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    Enhanced pinocembrin production in Escherichia coli by regulating cinnamic acid metabolism
  4. 2524
    “…In this study, we examined the relationships between anti-influenza virus serum antibody titers, clinical disease, and peripheral blood leukocyte (PBL) global gene expression during presymptomatic, acute, and convalescent illness in 83 participants infected with 2009 pandemic H1N1 virus in a human influenza challenge model. …”
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    Differential Effects of Influenza Virus NA, HA Head, and HA Stalk Antibodies on Peripheral Blood Leukocyte Gene Expression during Human Infection
  5. 2525
    “…Antibody titers against a viral pathogen are typically measured using an antigen binding assay, such as an enzyme-linked immunosorbent assay (ELISA), which only measures the ability of antibodies to identify a viral antigen of interest. …”
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    Scalable, semi-automated fluorescence reduction neutralization assay for qualitative assessment of Ebola virus-neutralizing antibodies in human clinical samples
  6. 2526
    “…Sera of cats which were clinically and serologically diagnosed as feline infectious peritonitis (FIP) possessed significantly higher VN titers to type I FCoV, and sera from cats experimentally infected with FIPV type II had high VN titers to type II but not type I viruses. …”
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    Differentiation of feline coronavirus type I and II infections by virus neutralization test
  7. 2527
    por Ng, Dianna L., Goldgof, Gregory M., Shy, Brian R., Levine, Andrew G., Balcerek, Joanna, Bapat, Sagar P., Prostko, John, Rodgers, Mary, Coller, Kelly, Pearce, Sandra, Franz, Sergej, Du, Li, Stone, Mars, Pillai, Satish K., Sotomayor-Gonzalez, Alicia, Servellita, Venice, Martin, Claudia Sanchez San, Granados, Andrea, Glasner, Dustin R., Han, Lucy M., Truong, Kent, Akagi, Naomi, Nguyen, David N., Neumann, Neil M., Qazi, Daniel, Hsu, Elaine, Gu, Wei, Santos, Yale A., Custer, Brian, Green, Valerie, Williamson, Phillip, Hills, Nancy K., Lu, Chuanyi M., Whitman, Jeffrey D., Stramer, Susan L., Wang, Candace, Reyes, Kevin, Hakim, Jill M. C., Sujishi, Kirk, Alazzeh, Fariba, Pham, Lori, Thornborrow, Edward, Oon, Ching-Ying, Miller, Steve, Kurtz, Theodore, Simmons, Graham, Hackett, John, Busch, Michael P., Chiu, Charles Y.
    Publicado 2020
    “…Neutralizing antibodies rose in tandem with immunoglobulin titers following symptom onset, and positive percent agreement between detection of IgG and neutralizing titers was >93%. …”
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    SARS-CoV-2 seroprevalence and neutralizing activity in donor and patient blood
  8. 2528
    “…Moreover, male plasma donors produce more RBD-IgG than female, and age of the patients positively correlates with the RBD-IgG titer. A strong positive correlation between RBD-IgG and neutralizing antibody titers is also identified. …”
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    Twelve-month specific IgG response to SARS-CoV-2 receptor-binding domain among COVID-19 convalescent plasma donors in Wuhan
  9. 2529
    “…However, with the variety of vaccines, immunization strategies, and waning antibody titers, defining the correlates of immunity across a spectrum of antibody titers is urgently required. …”
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    Fab and Fc contribute to maximal protection against SARS-CoV-2 following NVX-CoV2373 subunit vaccine with Matrix-M vaccination
  10. 2530
    “…The rank of neutralizing titers against different heterologous variants varied, depending on the immunized variant spikes. …”
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    Distinct neutralizing kinetics and magnitudes elicited by different SARS-CoV-2 variant spikes
  11. 2531
    “…Infectivity and neutralizing antibody titers of flavivirus and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are frequently measured using the conventional plaque assay. …”
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    Discrepancies in Infectivity of Flavivirus and SARS-CoV-2 Clinical Samples: An Improved Assay for Infectious Virus Shedding and Viremia Assessment
  12. 2532
    “…Local adverse reactions after the second dose, such as local pain and swelling, were less correlated with those of systemic symptoms, such as fever and muscle pain, whereas serum TNF-α levels were associated with systemic adverse reactions and with specific antibody titers. Interestingly, EV miR-92a-2-5p levels in sera were negatively correlated with degrees of adverse reactions, and EV miR-148a levels were associated with specific antibody titers. …”
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    Circulating extracellular vesicle microRNAs associated with adverse reactions, proinflammatory cytokine, and antibody production after COVID-19 vaccination
  13. 2533
    “…The geometric mean neutralization titers measured for the original and R.1 lineages were equivalent (91.90 ± 2.40 and 102.67 ± 2.28, respectively), whereas a low titer was measured for the beta variant (18.03 ± 1.92). …”
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    The effect of the E484K mutation of SARS-CoV-2 on the neutralizing activity of antibodies from BNT162b2 vaccinated individuals
  14. 2534
    “…The magnitude of the humoral responses to vaccination strongly correlates with responses to initial SARS-CoV-2 infection. Neutralization titers are lower against SARS-CoV-2 variants in both recovered and naive vaccinees, with titers more reduced in naive recipients. …”
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    Pre-existing SARS-CoV-2 immunity influences potency, breadth, and durability of the humoral response to SARS-CoV-2 vaccination
  15. 2535
    por Lina, B., Bauer, J.
    Publicado 2022
    “…It presents significantly reduced susceptibility to antibody neutralization: after 2 doses of mRNA-vaccine, neutralizing titers to Omicron are 41 to 84 times lower than neutralization titers to D614G. …”
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    SARS-CoV-2 genetic diversity: Its impact on vaccine efficacy
  16. 2536
    “…RESULTS: Younger children had higher titers of antibodies to SARS-CoV-2 receptor binding domain (RBD), S1 but not S2 domain, and total spike (S) protein, higher avidity RBD immunoglobulin G, and higher titers of neutralizing and complement-activating antibodies as compared with older children. …”
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    Younger Children Develop Higher Effector Antibody Responses to SARS-CoV-2 Infection
  17. 2537
    por Amoss, Harold L., Marsh, Penelope
    Publicado 1918
    “…The results also failed entirely to conform to the agglutination titer of the sera tested and to be affected by the different type forms of the meningococci. …”
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    STANDARDIZATION OF ANTIMENINGOCOCCIC SERUM
  18. 2538
    “…We found anti-CCP positivity and rheumatoid factor positivity and high titers in all patients, positive anti- anti-SSA in one patient, and positive anti- anti-Sm in one patient. …”
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    Three Case Reports of Rhupus Syndrome: An Overlap Syndrome of Rheumatoid Arthritis and Systemic Lupus Erythematosus
  19. 2539
    por Ng, Dianna L., Goldgof, Gregory M., Shy, Brian R., Levine, Andrew G., Balcerek, Joanna, Bapat, Sagar P., Prostko, John, Rodgers, Mary, Coller, Kelly, Pearce, Sandy, Franz, Sergej, Du, Li, Stone, Mars, Pillai, Satish K., Sotomayor-Gonzalez, Alicia, Servellita, Venice, Martin, Claudia Sanchez San, Granados, Andrea, Glasner, Dustin R., Han, Lucy M., Truong, Kent, Akagi, Naomi, Nguyen, David N., Neumann, Neil M., Qazi, Daniel, Hsu, Elaine, Gu, Wei, Santos, Yale A., Custer, Brian, Green, Valerie, Williamson, Phillip, Hills, Nancy K., Lu, Chuanyi M., Whitman, Jeffrey D., Stramer, Susan, Wang, Candace, Reyes, Kevin, Hakim, Jill M.C., Sujishi, Kirk, Alazzeh, Fariba, Pham, Lori, Oon, Ching-Ying, Miller, Steve, Kurtz, Theodore, Hackett, John, Simmons, Graham, Busch, Michael P., Chiu, Charles Y.
    Publicado 2020
    “…We additionally describe the longitudinal dynamics of immunoglobulin-G, immunoglobulin-M, and in vitro neutralizing antibody titers in COVID-19 patients. Neutralizing antibodies rise in tandem with immunoglobulin levels following symptom onset, exhibiting median time to seroconversion within one day of each other, and there is >93% positive percent agreement between detection of immunoglobulin-G and neutralizing titers.…”
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    SARS-CoV-2 seroprevalence and neutralizing activity in donor and patient blood from the San Francisco Bay Area
  20. 2540
    “…CASE: One patient presented a strong IgG anti-receptor-binding domain immune response correlated with a low and rapidly decreasing titer of neutralizing antibodies. The other patient had a similar strong IgG anti-receptor-binding domain immune response but high neutralizing antibody titers. …”
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    Differential serological and neutralizing antibody dynamics after an infection by a single SARS-CoV-2 strain
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