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    The comparison of pandemic H1N1 IgG levels between H1N1 influenza-vaccinated healthcare workers and unvaccinated healthcare workers
    (Tubitak Scientific & Technical Research Council Turkey, 2014) Cifci, Aydin; Erol, Ozlem; Cesur, Salih; Aksoy, Nurkan; Kisa, Ucler
    Background/aim: To compare pandemic H1N1 (pH1N1) IgG antibody levels between healthcare workers who were vaccinated with the pH1N1 influenza vaccine and the unvaccinated healthcare workers who were selected as the control group. Materials and methods: A total of 68 healthcare workers were included in this study. Of those, 53 were adults vaccinated with the H1N1 influenza vaccine and 15 were unvaccinated. Serum samples were parsed and stored at -40 degrees C until they were examined. Results: Of the total 53 vaccinated healthcare workers, 16 (30.1%) were positive for IgG antibodies (titer > 11), 17 (32.0%) were negative for IgG antibodies (titer < 9), and 20 (37.7%) were borderline (titer: 9-11). Of the 15 unvaccinated healthcare workers, 1 (6.6%) was positive for IgG antibodies, 11 (73.3%) were negative for IgG antibodies, and the remaining 3 (20.0%) had borderline values (P = 0.014, P < 0.05). In both groups, there was no statistically significant difference between IgG-negative, IgG-positive, and borderline subjects in terms of age or sex. Conclusion: The IgG antibody level was higher in the vaccinated healthcare workers than among the unvaccinated healthcare workers.
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    Öğe
    Evaluation of Prolonged Rt-Pcr Positivity and Viral Load in COVID-19 Patients
    (2023) Urkmez, Fatma Yekta; Erol, Ozlem; Polat, Esra; Kaygusuz, Sedat
    Aim: Real-time reverse transcription polymerase chain reaction (RT-PCR) test is used in the diagnosis of COVID-19. It was aimed to evaluate the factors affecting the viral conversion time, to examine the relationship between viral load, and to determine other factors that may be associated with viral load. Material and Methods: Patients were hospitalized between 15.03.2020-01.08.2020, and viral conversion detected were evaluated retrospectively. Patients were divided into two according to viral conversion time (0-14 days vs >14 days). Results: 349 patients were included in the study (284 vs 65 patients). The age and gender characteristics were similar. Prolonged PCR positivity group had more death (p=0.036) and lower cycle-threshold (CT) value (p=0.017). In the examination of CT values of 246 patients, 228 patients with viral conversion and 18 patients without viral conversion due to death, the CT value was found to be lower, therefore the viral load was higher in patients over 60 years of age (p=0.006), in the presence of cardiovascular system disease (p<0.001) and in patients who died (p<0.001). Conclusion: Prolonged PCR positivity may indicate excess viral load and adverse outcomes. An evaluation including the patient's age, CT value, comorbid conditions, and viral conversion time can give an idea about the prognosis.