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  1. 2321
    “…Vaccination protocols generally include at least two doses, in order to obtain high antibody titers. We want to analyze the relation between the time elapsed from the first dose (priming) and the second dose (boost) on the antibody titers. …”
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    How the Interval between Prime and Boost Injection Affects the Immune Response in a Computational Model of the Immune System
  2. 2322
    “…We investigated the dynamics and duration of antibody titer against Mannheimia haemolytica in Japanese Black calves. …”
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    Maternally and Naturally Acquired Antibody to Mannheimia haemolytica in Japanese Black Calves
  3. 2323
    “…We studied plasma antibody responses of 35 patients about 1 month after SARS-CoV-2 infection. Titers of antibodies binding to the viral nucleocapsid and spike proteins were significantly higher in patients with severe disease. …”
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    SARS-CoV-2 neutralizing antibody responses are more robust in patients with severe disease
  4. 2324
    por Zhou, Xianjin
    Publicado 2021
    “…Chronic presence of low titers of blood circulating anti-NMDAR1 autoantibodies are sufficient to impair cognitive function in the integrity of the BBB in mice, suggesting potential cognitive damaging effects of low titers of blood circulating anti-NMDAR1 autoantibodies in the general human population and psychiatric patients. …”
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    Cognitive Impact by Blood Circulating Anti-NMDAR1 Autoantibodies
  5. 2325
    “…Prozone phenomenon is defined as a false-negative response resulting from higher antibody titer which interferes with formation of antigen–antibody lattice, necessary to visualize a positive flocculation test. …”
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    Prozone phenomenon in secondary syphilis with HIV co-infection: Two cases
  6. 2326
    “…We also evaluated factors associated with high-level anti-S IgG titers (≥2403 U/mL) in logistic regression models. …”
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    SARS-CoV-2 vaccination in the first year after allogeneic hematopoietic cell transplant: a prospective, multicentre, observational study
  7. 2327
    “…The dotted line denotes an internally validated cutoff, with anti-S IgG titers greater than 1.07 indicating a positive response. …”
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    24. Longitudinal Assessment of Immune Responses to COVID-19 Vaccines in Solid Organ Transplant Recipients
  8. 2328
    “…Vaccination reduced morbidity and controlled lung virus titers for ancestral virus and Alpha but allowed breakthrough infections in Beta, Delta and Mu-challenged hamsters. …”
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    Breakthrough infections by SARS-CoV-2 variants boost cross-reactive hybrid immune responses in mRNA-vaccinated Golden Syrian Hamsters
  9. 2329
    “…Despite this correlation, inter-individual variability in antibody titers to H3N2 strains increased gradually with age. …”
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    Measures of population immunity can predict the dominant clade of influenza A (H3N2) and reveal age-associated differences in susceptibility and specificity
  10. 2330
    “…In a separate retrospective study of individuals immunized with the 17DD vaccine, the PRNT values at 5 and 10 years post-vaccination remained positive but showed a significant decrease in neutralization titer (25% with PRNT titers < 100 after 5 years and 35% after 10 years).…”
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    Description of a Prospective 17DD Yellow Fever Vaccine Cohort in Recife, Brazil
  11. 2331
    “…Results: The proportion of women with HAI titers ≥1:40 was significantly greater in vaccinees (63%) compared to placebo-recipients (22%; p < 0.001). …”
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    Influenza vaccination of pregnant women protects them over two consecutive influenza seasons in a randomized controlled trial
  12. 2332
    “…These results indicate that prior infection with heterologous flaviviruses neither conferred protection nor increased observed ZIKV titers in this non-human primate ZIKV infection model.…”
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    Impact of prior flavivirus immunity on Zika virus infection in rhesus macaques
  13. 2333
    “…Geometric mean titers increased >22-fold over baseline. At day 180, >95% of participants sustained protective titers regardless of their vaccine schedule. …”
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    Randomized Trial of 2 Schedules of Meningococcal B Vaccine in Adolescents and Young Adults, Canada
  14. 2334
    “…When the glycine at position 2 was mutated to alanine (G2A) using an infectious cDNA clone, a viable virus was recoverable and a mutant PRRSV was obtained. The titers of G2A mutant virus were 2.0 × 10(4) and 1.0 × 10(6) TCID(50)/ml for ‘passage-2’ and ‘passage-3’ viruses, respectively, in PAM cells, and these titers were significantly lower than those of wild-type PRRSV. …”
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    Myristoylation of the small envelope protein of porcine reproductive and respiratory syndrome virus is non-essential for virus infectivity but promotes its growth
  15. 2335
    “…A third of the tested samples did not have antibody titers and 58% had titers between 1:10 and 1:80. Only 12% had titers >1:160. …”
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    Prevalence of Severe Acute Respiratory Syndrome Coronavirus 2 Neutralizing Antibodies in Egyptian Convalescent Plasma Donors
  16. 2336
    “…Seroconversion rates and antibody titers in patients with hematological malignancy were significantly lower than those with solid tumors. …”
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    Immunogenicity of SARS-CoV-2 messenger RNA vaccines in patients with cancer
  17. 2337
    por Gagne, Matthew, Corbett, Kizzmekia S., Flynn, Barbara J., Foulds, Kathryn E., Wagner, Danielle A., Andrew, Shayne F., Todd, John-Paul M., Honeycutt, Christopher Cole, McCormick, Lauren, Nurmukhambetova, Saule T., Davis-Gardner, Meredith E., Pessaint, Laurent, Bock, Kevin W., Nagata, Bianca M., Minai, Mahnaz, Werner, Anne P., Moliva, Juan I., Tucker, Courtney, Lorang, Cynthia G., Zhao, Bingchun, McCarthy, Elizabeth, Cook, Anthony, Dodson, Alan, Teng, I-Ting, Mudvari, Prakriti, Roberts-Torres, Jesmine, Laboune, Farida, Wang, Lingshu, Goode, Adrienne, Kar, Swagata, Boyoglu-Barnum, Seyhan, Yang, Eun Sung, Shi, Wei, Ploquin, Aurélie, Doria-Rose, Nicole, Carfi, Andrea, Mascola, John R., Boritz, Eli A., Edwards, Darin K., Andersen, Hanne, Lewis, Mark G., Suthar, Mehul S., Graham, Barney S., Roederer, Mario, Moore, Ian N., Nason, Martha C., Sullivan, Nancy J., Douek, Daniel C., Seder, Robert A.
    Publicado 2022
    “…Antibody-binding titers also decreased in bronchoalveolar lavage (BAL). …”
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    Protection from SARS-CoV-2 Delta one year after mRNA-1273 vaccination in rhesus macaques coincides with anamnestic antibody response in the lung
  18. 2338
    “…However, Omicron BA.1-triggered neutralization was not extensively cross-reactive for VOCs (14- to 31-fold titer reduction), and we observed 4-fold decreased titers against Omicron BA.2. …”
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    SARS-CoV-2 Omicron triggers cross-reactive neutralization and Fc effector functions in previously vaccinated, but not unvaccinated, individuals
  19. 2339
    “…Prior vaccination, baseline titer level, and age were the major determinants of seroconversion, all of which had negative effects. …”
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    Evaluation of determinants of the serological response to the quadrivalent split‐inactivated influenza vaccine
  20. 2340
    “…In addition, phenotypes associated with memory T cell longevity, antibody titers, and disease severity are incompletely understood. …”
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    SARS-CoV-2-specific CD4(+) T cell longevity correlates with Th17-like phenotype
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