The investigations carried out showed the dependence of immunosuppression induced by A/USRR/053/74(H3N2) virus upon the activity of its neuraminidase. High activity of this enzyme influenced interferon (IFN) induction which, in turn, reduced the primary humoral response to sheep red blood cells (SRBC) or stimulated the production of IgM and IgG antibody producing cells.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Cellular and humoral immune responses in cats vaccinated with feline herpesvirus 1 modified live virus vaccine.
Front Vet Sci
January 2025
College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China.
Feline herpesvirus 1 (FHV-1) is an important pathogen causing infectious rhinotracheitis in felids, mainly infecting the upper respiratory tract and conjunctiva. Multiple vaccines are available to prevent FHV-1 infection, and the antibody levels are always used to evaluate their effectiveness. However, the cellular immunity response following immunization in cats remains unclear.
View Article and Find Full Text PDFAvian influenza mRNA vaccine encoding hemagglutinin provides complete protection against divergent H5N1 viruses in specific-pathogen-free chickens.
J Nanobiotechnology
January 2025
College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
Background: The rapid mutation of avian influenza virus (AIV) poses a significant threat to both the poultry industry and public health. Herein, we have successfully developed an mRNA-LNPs candidate vaccine for H5 subtype highly pathogenic avian influenza and evaluated its immunogenicity and protective efficacy.
Results: In experiments on BALB/c mice, the vaccine candidate elicited strong humoral and a certain cellular immune responses and protected mice from the heterologous AIV challenge.
Memory responses to ovalbumin-immunization in Mojave desert tortoises.
Dev Comp Immunol
January 2025
Biology Department, University of Colorado - Pueblo, 2200 Bonforte Ave., Pueblo, CO 81001.
We immunized three groups of Mojave desert tortoises (Gopherus agassizii): a group immunized twice, a group immunized once, and a group sham-immunized. We used the antigen, ovalbumin (OVA), with Freund's adjuvant to elicit antibody responses similar to those induced by extracellular bacteria. All tortoises have relatively high levels of B1 lymphocytes and natural antibodies (NAbs), and the goal of this study was to quantify B2 lymphocyte activity (antibody production and potential proliferation) that occurs in primary and secondary immunizations against this constitutive, first line of humoral defense.
View Article and Find Full Text PDFLong-term assessment of anti-SARS-CoV-2 antibody levels post-pandemic: Tracking the dynamics after two, three, and four COVID-19 vaccine doses.
J Infect Public Health
January 2025
Clinical Research Department, Pasteur Institute of Iran, No 69, Pasteur Ave., Tehran, Iran. Electronic address:
Background: Given the limited available data about to the number of vaccine doses administered over an extended time in Iran, the immune status of vaccinated individuals and any potential disparities in this regard among those who received different numbers of vaccine doses remain unknown. Therefore, this study aimed to assess humoral immunity of individuals who received different doses of the COVID-19 vaccines in Iran.
Methods: This study was conducted from February, 2022 to December 2023 including 605 vaccinated subjects.
Antibody response to Plasmodium vivax in the context of Epstein-Barr virus (EBV) co-infection: A 14-year follow-up study in the Amazon rainforest.
PLoS One
January 2025
Instituto René Rachou, Fiocruz Minas, Fundação Oswaldo Cruz (Fiocruz), Belo Horizonte, Minas Gerais, Brazil.
Background: To develop an effective vaccine against Plasmodium vivax, the most widely dispersed human malaria parasite, it is critical to understand how coinfections with other pathogens could impact malaria-specific immune response. A recent conceptual study proposed that Epstein-Barr virus (EBV), a highly prevalent human herpesvirus that establishes lifelong persistent infection, may influence P. vivax antibody responses.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!