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17 September 2024 : Clinical Research  

Influenza Hemagglutinin Antibody Levels in the Elderly: Impact of Sex, Age, and Influenza/COVID-19 Vaccination Status During the 2021/2022 Epidemic Season in Warsaw, Poland

Magdalena Proniewska-Sadowska ORCID logo1ABCDEF*, Anna Poznańska ORCID logo2C, Lidia Bernadeta Brydak ORCID logo3ABDEFG

DOI: 10.12659/MSM.945002

Med Sci Monit 2024; 30:e945002

Table 2 Characteristics of antibody prevalence by virus type among a total of 256 patients aged 65 to 99 years.

A/Victoria/2570/2019 (H1N1)pdm09A/Cambodia/e0826360/2020(H3N2)B/Washington/02/2019 (B/Victoria lineage)B/Phuket/3073/2013 (B/Yamagata lineage)
Number and percentage of patients with antibodies152 (59.4%)246 (96.1%)247 (96.5%)252 (98.4%)
GMT* 35.4110.944.361.8
Protective level70 (27.3%)224 (87.5%)(62.1%)195 (76.2%)
* We take into account people with non-zero antibody titers.

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750