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  1. 1741
    “…A second immunization resulted in a substantial boost in serum IgG ELISA titers, yet the titers remained lower than those induced by a second dose of HPIV3/GP. …”
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    Respiratory tract immunization of non-human primates with a Newcastle disease virus-vectored vaccine candidate against Ebola virus elicits a neutralizing antibody response
  2. 1742
    “…This study aimed to evaluate HBsAg titers during the natural course of CHB and identify correlations between HBsAg titers and hepatitis B virus (HBV) DNA concentrations across different CHB phases measured using an immunoradiometric assay (IRMA). …”
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    Hepatitis B Surface Antigen Quantification across Different Phases of Chronic Hepatitis B Virus Infection Using an Immunoradiometric Assay
  3. 1743
    “…Colostral rotavirus neutralization titers were not affected by treatment. Although numerical differences appeared large, there was a high degree of variability in the colostral rotavirus neutralization titers. …”
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    Immune Parameters of Dry Cows Fed Mannan Oligosaccharide and Subsequent Transfer of Immunity to Calves
  4. 1744
    “…However, not all recovered patients develop adequate antibody titers for donation and the relationship between avidity and neutralizing titers is currently not well understood. …”
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    SARS-CoV-2 Antibody Avidity Responses in COVID-19 Patients and Convalescent Plasma Donors
  5. 1745
    “…IgG(S-RBD) titers at 6 months were strongly correlated to peak values (p < 0.001) and a peak titer above 10,370 AU/mL predicted persistent protection at 6 months. …”
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    Determinants of SARS-CoV-2 waning immunity in allogeneic hematopoietic stem cell transplant recipients
  6. 1746
    “…Additionally, the nAb titer was 1.46 times significantly higher in those aged ≥ 50 years than in those aged < 50 years (p = 0.036) irrespective of time Moreover, the nAb titer was 2.41 times higher in the moderate or above than that in the below moderate disease severity group (p < 0.001). …”
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    Kinetics of neutralizing antibodies against SARS-CoV-2 infection according to sex, age, and disease severity
  7. 1747
    “…Cassava plants infected with African cassava mosaic virus (ACMV) and/or East African cassava mosaic Cameroon virus (EACMCV), in which the ratios of DNA-A:DNA-B titers differed between plants, were used to examine how titers of the segments in a plant relate to their respective probabilities of acquisition by whiteflies and to the titers of each segment acquired and subsequently transmitted by whiteflies. …”
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    Genome segment ratios change during whitefly transmission of two bipartite cassava mosaic begomoviruses
  8. 1748
    “…Higher fold rise in the HI titer was observed in the group with first than repeated vaccination and the fold increase in the HI titer was inversely correlated with pre-vaccination titer in 2007 and 2008. …”
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    Antibody Responses to Trivalent Inactivated Influenza Vaccine in Health Care Personnel Previously Vaccinated and Vaccinated for The First Time
  9. 1749
    “…Two doses of unadjuvanted vaccines induced low or no HA-specific IgG responses and hemagglutination-inhibiting titers. Adjuvanted vaccines induced comparable IgG-titers, but poorer neutralizing antibody titers for the H5 vaccine. …”
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    H5N1 influenza vaccine induces a less robust neutralizing antibody response than seasonal trivalent and H7N9 influenza vaccines
  10. 1750
    “…RESULTS: In this study, the synthetic pathway of LNnT was constructed by co-expressing the lactose permease (LacY) β-1,3-N-acetylglucosaminyltransferase (LgtA) and β-1,4-galactostltransferase (LgtB) in Bacillus subtilis, resulting in an LNnT titer of 0.61 g/L. Then, by fine-tuning the expression level of LgtB, the growth inhibition was reduced and the LNnT titer was increased to 1.31 g/L. …”
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    Modular pathway engineering of key precursor supply pathways for lacto-N-neotetraose production in Bacillus subtilis
  11. 1751
    “…We showed the nearly complete removal of anti-AAV antibodies from high titer purified human IgG pools and plasma samples, decreasing titers to levels that allow AAV vector administration in mice. …”
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    Capsid-specific removal of circulating antibodies to adeno-associated virus vectors
  12. 1752
    “…Here, we assess therapeutic passive transfer in groups of SARS-CoV-2-infected African green monkeys with convalescent sera containing either high or low anti-SARS-CoV-2 neutralizing antibody titers. Differences in viral load and pathology are minimal between monkeys that receive the lower titer convalescent sera and untreated controls. …”
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    Use of convalescent serum reduces severity of COVID-19 in nonhuman primates
  13. 1753
    “…Furthermore, ELISA-RBD IgG titers and pseudovirus-based NAb titers correlated significantly, with R(2) of 0.2564 (P < 0.0001). …”
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    Predictive Analysis of the Neutralization Activity in Convalescent Plasmas From COVID-19 Recovered Patients in Zhejiang Province, China, January-March, 2020
  14. 1754
    “…Titers at 3 months post-dose 2 in PLWH correlated with CD4 counts. …”
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    1495. Mpox Vaccine Immunity in People Living with HIV (PLWH) During The 2022 Mpox Outbreak in New York City
  15. 1755
    “…Fetal plasma and serum yield much lower conglutination titers than adult plasma and serum, indicating that fetal blood is deficient in conglutinin. …”
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    STUDIES ON THE CONGLUTINATION REACTION, WITH SPECIAL REFERENCE TO THE NATURE OF CONGLUTININ
  16. 1756
    “…Although a correlate of protection was not identified, correlations between subclass titers and age, and correlations between IgG subclass titers and parasite burden, defined by area under the curve parasitaemia levels, were observed, which expand knowledge about IgG subclass responses. …”
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    Immunoglobulin G subclass and antibody avidity responses in Malian children immunized with Plasmodium falciparum apical membrane antigen 1 vaccine candidate FMP2.1/AS02(A)
  17. 1757
    “…After 9 days, influenza-SAD treated mice appeared to have higher virus titers. No difference in the pathological progression of pneumonia was discernible between these two groups of mice. …”
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    Enhancement of influenza virus infections by secalonic acid D.
  18. 1758
    “…The lactic dehydrogenase agent (LDH agent) was found in the urine, feces, and saliva of mice within 24 hours after inoculation. The titer of virus in these materials appears to be directly related to the titer in the plasma. …”
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    STUDIES ON THE TRANSMISSION AND THE EXCRETION OF THE LACTIC DEHYDROGENASE AGENT
  19. 1759
    “…This restricted period of transmission is not due to declining titers of infective virus in the nose, trachea, or lungs of infector mice after 48 hours of infection, since peak titers in these tissues are maintained for another 48 hours. …”
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    EXPERIMENTAL TRANSMISSION OF INFLUENZA VIRUS INFECTION IN MICE : I. THE PERIOD OF TRANSMISSIBILITY
  20. 1760
    Publicado 1978
    “…AKR mice, which produce high titers of ecotropic virus, were crossed with NZB mice, which produce titers of xenotropic virus. …”
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    Restricted expression of ecotropic virus by thymocytes of leukemia- resistant (AKR X NZB)F1 mice
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