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    Changing Infection Dynamics with the Pandemic: Distribution of Viral Agents of Respiratory Tract Infections in the Last 5 Years
    (Galenos Publ House, 2023) Karabey, Mehmet; Kaya, Havva; Kaba, Kadir; Ceylan, Alperen; Taskin, Zekeriya; Ozdemir, Mehmet; Feyzioglu, Bahadir
    Introduction: The measures taken against Severe acute respiratory syndrome-Coronavirus-2 (SARS-CoV-2) positively impacted the reduction of its transmission. In addition, these measures also significantly decreased the spread of infections caused by other respiratory viruses. In this study, we aimed to determine the frequency of respiratory virus infections, other than SARS-CoV-2, during the Coronavirus disease-2019 (COVID-19) pandemic and investigated their course during both the quarantine and normalization periods.Materials and Methods: Swab samples sent to Necmettin Erbakan University Meram Faculty of Medicine Hospital Medical Microbiology Laboratory between May 2017 and May 2022 to determine the viral agents of respiratory tract infections by polymerase chain reaction (PCR) were retrospectively scanned.Results: A total of 187,240 SARS-CoV-2 PCR tests were performed between April 1, 2020, and May 31, 2020, and 14,773 (9.82%) tests were reported as positive. Based on our observation, the viruses demonstrating a decrease during the pandemic period were influenza A and B, seasonal H1N1, human metapneumovirus, respiratory syncytial virus A and B, and human herpes virus 7. No changes were observed in the infection rates of parvovirus B19, adenovirus, and human rhinovirus.Conclusion: In our study, we observed a serious decline in the cases caused by other respiratory viral agents and the detection rates of these agents during the pandemic period compared to the pre-pandemic period. This can be attributed to the extensive impact of the measures implemented during the COVID-19 pandemic to mitigate the spread of respiratory infections. Our results are a reflection of this situation. We believe that the data obtained from a large number of samples will serve as a guide for managing infections during the current pandemic and for future experiences.
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    COVID-19 Seroprevalance in a University Hospital Health Workers
    (Bilimsel Tip Yayinevi, 2021) Arslan, Gokce Kader; Ozdemir, Mehmet; Kaya, Havva; Feyzioglu, Bahadir; Kepenek Kurt, Esma; Erayman, Ibrahim
    Introduction: Healthcare workers are at the forefront in the Pandemic war against COVID-19 (Coronavirus Disease 2019) caused by SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus-2). In this struggle, they have become high-risk by keeping in close con- tact with patients during their diagnosis, treatment, and follow-up with long working hours. The aim of this study was to contribute to epidemiological data of our country by examining the antibody status of our hospital healthcare workers. Materials and Methods: Anti-SARS-CoV-2 IgG/IgM, COVID-19 ELISA kits were studied from sera samples of healthcare workers in Necmettin Erbakan University Meram Medical Faculty Hospital between June 1 and November 30, 2020. Nasopharyngeal swab sam- ples of these persons were also tested with the Real Time Polymerase Chain Reaction (RT-PCR) method. Results: SARS-CoV-2 seroprevalence of 741 healthcare workers included in our study was found to be 17%. Seropositivity was detected in 6.4% (33/515) of the healthcare workers with negative SARS-CoV-2 PCR test and in 3.9% (5/130) of the healthcare workers who did not have PCR test. Among the healthcare workers, the highest seroprevalence was observed in nurses (39.6%) followed by doctors (%23). Conclusion: It was evaluated that SARS-CoV-2 seroprevalence in healthcare workers is higher than in the population. This study shows that occupational exposure is a risk factor. 3.9% seropositivity was found in healthcare workers who never had a test. Considering that these workers have an asymptomatic or subclinical infection, there is a possible risk for nosocomial transmission. Therefore, healthcare professionals should use personal protective equipment and apply hygiene rules correctly and effectively in infectious diseases, especially during pandemic periods, while working in the hospital.
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    Investigation of Children with Acute Gastroenteritis by Multiplex PCR Method in Central Part of Turkey
    (Georg Thieme Verlag Kg, 2022) Yilmaz, Fatih; Kaya, Havva; Ozdemir, Mehmet
    Objective Gastroenteritis is a disease that affects all age groups, especially children, and causes high mortality and morbidity in all countries. The most common agents of acute gastroenteritis are viral agents. As a result, millions of diarrhea attacks and hospital admissions occur worldwide every year due to viral gastroenteritis. This study uses the multiplex polymerase chain reaction (PCR) method to investigate the viruses that are the causative agents of viral gastroenteritis in the pediatric patient group in Konya, Turkey. Methods Stool samples of 94 patients aged 0 to 18 years sent from Emergency clinics and Pediatric outpatient clinics, Meram Medical Faculty Hospital Pediatric clinics, Konya Necmettin Erbakan University to Medical Microbiology Laboratory with a diagnosis of gastroenteritis between February and December 2018 were included in the study. Stool samples were stored at -80 degrees C until the time of the analysis. Deoxyribonucleic acid/ribonucleic acid isolation from stool samples was performed with EZ1 Virus Mini Kit v2.0 (Qiagen, Hilden, Germany) using an automatic extraction system (BioRobot EZ1 system, Qiagen). The presence of astrovirus, rotavirus, adenovirus, norovirus (GI, GII), and sapovirus agents was investigated by the multiplex PCR method (Fast Track Diagnostics, Luxembourg) viral gastroenteritis kit. Results Viral gastroenteritis agents were detected in 56.3% of the patients. One viral agent was detected in 47 (50%) of these patients and at least two viral agents in 6 (6.3%) of them. Norovirus GII was detected in 20 (21.2%) of the children included in the study, adenovirus in 13 (13.8%), rotavirus in 11 (12.8%), astrovirus in 11 (11.7%), sapovirus in 4 (4.2%), and norovirus GI in 1 (1.06%). When the distribution of viral agents was examined by months, the most number of agents were observed (21; 35%) in May, followed by April and June (12; 20%). Considering the distribution of the prevalence of the agents by age, it was seen to be mainly between 0 and 12 months (42%). Conclusion Considering that the most common viral agent in our region is norovirus GII, it will be useful to investigate the norovirus that is not routinely examined in children who are admitted to clinics with the complaint of gastroenteritis. It will be appropriate to examine routinely adenovirus, rotavirus, and norovirus in the laboratory, especially in children with diarrhea and vomiting in the winter and spring months.