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The determination of haemagglutinin influenza antibodies in the Polish population in the epidemic season 2020/2021 during the SARS-CoV-2 pandemic.
Niedzielak, Malgorzata; Hallmann, Ewelina; Kondratiuk, Katarzyna; Szymanski, Karol; Kolondra, Adam; Poznanska, Anna; Brydak, Lidia.
  • Niedzielak M; Department of Influenza Research - National Influenza Center, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland.
  • Hallmann E; Department of Influenza Research - National Influenza Center, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland.
  • Kondratiuk K; Department of Influenza Research - National Influenza Center, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland.
  • Szymanski K; Department of Influenza Research - National Influenza Center, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland.
  • Kolondra A; Department of Influenza Research - National Influenza Center, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland.
  • Poznanska A; Department of Population Health Monitoring and Analysis, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland.
  • Brydak L; Department of Influenza Research - National Influenza Center, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland.
Acta Biochim Pol ; 69(2): 459-464, 2022 Apr 28.
Article in English | MEDLINE | ID: covidwho-1818860
ABSTRACT
The aim of the study was to prove the level of antibodies against haemagglutinin in the sera of people from seven age groups in the epidemic season 2020/2021 in Poland to determine the differentiation of the antibody level and the protection rate depending on age. The level of anti-haemagglutinin antibodies was established by haemagglutinin inhibition test (HAI). A total of 700 randomly selected sera from people belonging to 7 different age groups were tested. The results confirmed the presence of antibodies against the following influenza antigens A/Guangdong-Maonan/SWL1536/2019 (H1N1)pdm09-like virus, A/Hong Kong/2671/2019 (H3N2)-like virus, B/Washington/02/2019 (B/Victoria lineage)-like virus and B/Phuket/3073/2013 (B/Yamagata lineage)-like virus. The level of haemagglutinin antibodies varied between the studied age groups, with the highest values in the 5-9 age group and the lowest in the 0-4 age group. It was also proven that the protection rate was the highest for the A/Hong Kong/2671/2019(H3N2)-like virus antigen, which exceeded the protection level in the 5 age groups. Considering the very low percentage of people vaccinated in the epidemic season 2020/2021 in Poland, which amounted to only 6.1%, the results should be interpreted as the immune system's response to an infection with influenza virus.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Influenza Vaccines / Influenza, Human / Influenza A Virus, H1N1 Subtype / COVID-19 Type of study: Experimental Studies / Observational study / Randomized controlled trials Topics: Vaccines Limits: Humans Country/Region as subject: Europa Language: English Journal: Acta Biochim Pol Year: 2022 Document Type: Article Affiliation country: Abp.2020_6015

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Influenza Vaccines / Influenza, Human / Influenza A Virus, H1N1 Subtype / COVID-19 Type of study: Experimental Studies / Observational study / Randomized controlled trials Topics: Vaccines Limits: Humans Country/Region as subject: Europa Language: English Journal: Acta Biochim Pol Year: 2022 Document Type: Article Affiliation country: Abp.2020_6015