Browsing by Author "Körkoca, H."

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Analysis of Antibiotic Resistance of Kpc-2 Klebsiella Pneumoniae Strains Isolated From Blood Cultures in Van, Turkey
(Verduci Editore s.r.l, 2024) Akgül, Ö.; Körkoca, H.; Bora, G.
OBJECTIVE: Recently, Klebsiella pneumoniae strains causing bacteremia and showing significant antibiotic resistance have raised serious health concerns. Especially carbapenem-resistant K. pneumoniae has spread worldwide and caused an increase in mortality rates. In this study, we aimed to present information about KPC-2 carriage and molecular characteristics of K. pneumoniae strains showing multiple antibiotic resistance among patients in our hospital. PATIENTS AND METHODS: Blood samples were collected from patients hospitalized in the intensive care units (ICU) of Van Regional Training and Research Hospital between 2020-2021. Culture, biochemical tests, antibiotic susceptibility tests, and molecular tests were performed to identify K. pneumoniae strains isolated from blood culture samples. RESULTS: Two hundred and sixteen K. pneumoniae were isolated from patients with positive blood cultures. Twenty-seven of these isolates showed multidrug resistance. Carbapenem, β-lactam, and quinolone resistance were particularly high. On the contrary, almost all of these isolates were susceptible to Amikacin (AK), Gentamicin (CN), Colistin (CT) and Tigecycline (TGC). Molecular analysis revealed that all of these isolates were KPC-2-positive and ST11 variants. CONCLUSIONS: It was observed that KPC-2positive K. pneumoniae strains with multi-drug resistance may pose a serious risk in patients hospitalized in ICU in our hospital. It was concluded that surveillance and personnel training regarding the hospital and community-acquired infections due to these isolates that show pandemic spread would be important. © 2024 Verduci Editore s.r.l. All rights reserved.
Investigation of Cryptosporidium Sp. in Workers of the Van Municipality Slaughterhouse and in Slaughtered Animals
(2008) Ciçek, M.; Körkoca, H.; Gül, A.
This study was carried out in order to investigate the prevalence of Cryptosporidium sp. in slaughtered animals and workers of the Van municipality slaughterhouse in Van. Animals slaughtered at different times and workers who had been working in different departments of the slaughter house were included in the study for three months. A total of 309 fecal specimens from animals including 167 sheep, 56 goats and 86 cattle and 87 fecal specimens from workers were examined for Cryptosporidium sp. oocysts. In slaughtered animals, the modified acid-fast staining method was used to determine the oocysts of Cryptosporidium sp. The fecal samples of slaughter workers were examined by using RIDA (R) Quick Cryptosporidium Strip Test (R-Biopharm, Germany) and the modified acid-fast staining method. Fecal samples found to be positive by stripe test were also confirmed with the ELISA method (R-Biopharm, Germany). Oocysts of Cryptosporidium sp. were found in fecal specimens of 22 sheep (13.17%), 6 goats (10.71%) and 7 cattle (8.13%). Intestinal parasites were observed in 34 fecal specimens of workers (39.08%). Cryptosporidium sp., Hymenolepis nana, Chilomastix mesnili, Endolimax nana, Iodamoeba bütschlii were found in the specimen of one worker (1.14%), Entamoeba coli in 4 workers (4.59%), Blastocystis hominis (9.19%) in 8 workers, and Giardia intestinalis (19.54%) in 17 workers.