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 1ABCDEF*, Anna Poznańska 2C, Lidia Bernadeta Brydak 3ABDEFGDOI: 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)pdm09 | A/Cambodia/e0826360/2020(H3N2) | B/Washington/02/2019 (B/Victoria lineage) | B/Phuket/3073/2013 (B/Yamagata lineage) | |
---|---|---|---|---|
Number and percentage of patients with antibodies | 152 (59.4%) | 246 (96.1%) | 247 (96.5%) | 252 (98.4%) |
GMT* | 35.4 | 110.9 | 44.3 | 61.8 |
Protective level | 70 (27.3%) | 224 (87.5%) | (62.1%) | 195 (76.2%) |
* We take into account people with non-zero antibody titers. |