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Updated: Jan 27, 2026

Expression and Purification of Virus-like Particles for Vaccination
Published on: June 2, 2016
Influenza vaccination prevalence among the elderly and individuals with chronic disease, and factors affecting
Pinar Korkmaz1, Türkan Paşali Kilit2, Kevser Onbaşi2
1Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Dumlupinar University, Kutahya, Turkey.
Objective:
Our aim is to evaluate influenza vaccination rates among the elderly and individuals with underlying chronic disease, and factors that affect vaccination uptake.
Methods:
The study comprised individuals aged 18-65 years with underlying chronic diseases, and individuals aged over 65 years. Literature-based questionnaires prepared by the researcher regarding vaccination were completed through face-to-face interviews by the principal investigator.
Results:
A total of 818 participants were included in the study, 257 (31.4%) were males. The mean age of participants was 57.47 ± 14.11 years; 274 (33.5%) were aged 65 years and over. One hundred and three (12.6%) participants stated that they received vaccinations against influenza annually, and 144 (17.6%) stated that they had vaccination against influenza in the 2015/16 or 2016/17 season. Fifty-two (19%) participants aged more than 65 years stated that they received vaccinations against influenza annually, 75 (27.4%) stated that they had vaccination against influenza in the 2015/16 or 2016/17 season. The most commonly determined reasons for not receiving vaccination were not knowing that it was necessary (34%) and believing that vaccination was not necessary because they were healthy (26%). Statistically significantly more participants who gained their knowledge from a physician were vaccinated than those whose knowledge came from other sources (p < 0.05). Participants who considered that they had sufficient information about influenza were vaccinated more frequently, the results were statistically significant (p < 0.05).
Conclusion:
Informing target risk groups about influenza vaccination by physicians and increasing awareness about influenza may contribute to increasing vaccination rates.
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