Koray Ergunay

Summary

Affiliation: Hacettepe University
Country: Turkey

Publications

  1. ncbi request reprint [Investigation of baseline antiviral resistance in treatment-naive chronic hepatitis B cases]
    Koray Ergunay
    Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
    Mikrobiyol Bul 47:628-35. 2013
  2. ncbi request reprint [A case of central nervous system infection due to west nile virus lineage-1 in ankara province, Turkey]
    Murat Ocal
    Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Virology Unit, Ankara, Turkey
    Mikrobiyol Bul 47:164-72. 2013
  3. doi request reprint Multicentre evaluation of central nervous system infections due to Flavi and Phleboviruses in Turkey
    Koray Ergunay
    Hacettepe University, Faculty of Medicine, Department of Medical Microbiology, 06100 Ankara, Turkey
    J Infect 65:343-9. 2012
  4. doi request reprint Molecular evidence indicates that Phlebotomus major sensu lato (Diptera: Psychodidae) is the vector species of the recently-identified sandfly fever Sicilian virus variant: sandfly fever turkey virus
    Koray Ergunay
    Department of Medical Microbiology, Virology Unit, Hacettepe University, Ankara, Turkey
    Vector Borne Zoonotic Dis 12:690-8. 2012
  5. ncbi request reprint  Epidemiologic trends in HBV infections at a reference centre in Turkey: an 11-year retrospective analysis
    Koray Ergunay
    Hacettepe University Faculty of Medicine, Department of Medical Microbiology, 06100 Ankara, Turkey
    Ann Hepatol 11:672-8. 2012
  6. doi request reprint A case of central nervous system infection due to a novel Sandfly Fever Virus (SFV) variant: Sandfly Fever Turkey Virus (SFTV)
    Koray Ergunay
    Hacettepe University, Faculty of Medicine, Department of Medical Microbiology, Virology Unit, 06100, Ankara, Turkey
    J Clin Virol 54:79-82. 2012
  7. ncbi request reprint [Investigation of dengue virus and yellow fever virus seropositivities in blood donors from Central/Northern Anatolia, Turkey]
    Koray Ergunay
    Hacettepe Universitesi Tip Fakultesi, Tibbi Mikrobiyoloji Anabilim Dali, Viroloji Unitesi, Ankara, Turkiye
    Mikrobiyol Bul 44:415-24. 2010
  8. doi request reprint Toscana virus (TOSV) exposure is confirmed in blood donors from Central, North and South/Southeast Anatolia, Turkey
    K Ergunay
    Department of Medical Microbiology, Virology Unit, Hacettepe University, Faculty of Medicine, Sihhiye, Ankara, Turkey
    Zoonoses Public Health 59:148-54. 2012
  9. doi request reprint Sandfly fever virus activity in central/northern Anatolia, Turkey: first report of Toscana virus infections
    K Ergunay
    Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, 06100 Sihhiye, Ankara, Turkey
    Clin Microbiol Infect 17:575-81. 2011
  10. doi request reprint Current status of human arboviral diseases in Turkey
    Koray Ergunay
    Virology Unit, Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
    Vector Borne Zoonotic Dis 11:731-41. 2011

Collaborators

Detail Information

Publications34

  1. ncbi request reprint [Investigation of baseline antiviral resistance in treatment-naive chronic hepatitis B cases]
    Koray Ergunay
    Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
    Mikrobiyol Bul 47:628-35. 2013
    ..The impact and cost-effectivity of detecting naturally-occurring resistance mutations for clinical follow-up prior to the antiviral therapy need to be elucidated by prospective studies...
  2. ncbi request reprint [A case of central nervous system infection due to west nile virus lineage-1 in ankara province, Turkey]
    Murat Ocal
    Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Virology Unit, Ankara, Turkey
    Mikrobiyol Bul 47:164-72. 2013
    ..Thus investigation of WNV RNA together with the specific serological tests may help the accurate diagnosis of suspected cases...
  3. doi request reprint Multicentre evaluation of central nervous system infections due to Flavi and Phleboviruses in Turkey
    Koray Ergunay
    Hacettepe University, Faculty of Medicine, Department of Medical Microbiology, 06100 Ankara, Turkey
    J Infect 65:343-9. 2012
    ..In this study, the impact of these agents have been investigated in CNS infections at referral hospitals in two provinces in Turkey, where circulation of these viruses have previously been recognized...
  4. doi request reprint Molecular evidence indicates that Phlebotomus major sensu lato (Diptera: Psychodidae) is the vector species of the recently-identified sandfly fever Sicilian virus variant: sandfly fever turkey virus
    Koray Ergunay
    Department of Medical Microbiology, Virology Unit, Hacettepe University, Ankara, Turkey
    Vector Borne Zoonotic Dis 12:690-8. 2012
    ..Bovine and human blood meals were demonstrated in SFTV-infected sandflies. P. major s.l. has been identified as the vector species for SFTV. Bovidae need to be evaluated as probable amplifying hosts for SFTV...
  5. ncbi request reprint  Epidemiologic trends in HBV infections at a reference centre in Turkey: an 11-year retrospective analysis
    Koray Ergunay
    Hacettepe University Faculty of Medicine, Department of Medical Microbiology, 06100 Ankara, Turkey
    Ann Hepatol 11:672-8. 2012
    ....
  6. doi request reprint A case of central nervous system infection due to a novel Sandfly Fever Virus (SFV) variant: Sandfly Fever Turkey Virus (SFTV)
    Koray Ergunay
    Hacettepe University, Faculty of Medicine, Department of Medical Microbiology, Virology Unit, 06100, Ankara, Turkey
    J Clin Virol 54:79-82. 2012
    ..SFTV was initially characterized in 2010 in samples from outbreaks of febrile diseases occurred during 2007-2008 and to the best of our knowledge, this is the first report of an SFTV-related central nervous system (CNS) infection...
  7. ncbi request reprint [Investigation of dengue virus and yellow fever virus seropositivities in blood donors from Central/Northern Anatolia, Turkey]
    Koray Ergunay
    Hacettepe Universitesi Tip Fakultesi, Tibbi Mikrobiyoloji Anabilim Dali, Viroloji Unitesi, Ankara, Turkiye
    Mikrobiyol Bul 44:415-24. 2010
    ..These findings indicated that DENV or an antigenically-similar flavivirus was probably present in the study region and sporadic human exposure might have occurred...
  8. doi request reprint Toscana virus (TOSV) exposure is confirmed in blood donors from Central, North and South/Southeast Anatolia, Turkey
    K Ergunay
    Department of Medical Microbiology, Virology Unit, Hacettepe University, Faculty of Medicine, Sihhiye, Ankara, Turkey
    Zoonoses Public Health 59:148-54. 2012
    ..These data reveal that mild or asymptomatic infections with TOSV are frequent in central and northern Anatolia. TOSV exposure has also been identified in residents of 9 provinces in southern/southeastern Anatolia for the first time...
  9. doi request reprint Sandfly fever virus activity in central/northern Anatolia, Turkey: first report of Toscana virus infections
    K Ergunay
    Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, 06100 Sihhiye, Ankara, Turkey
    Clin Microbiol Infect 17:575-81. 2011
    ..Infections are observed to be endemic in central Anatolia and should be considered as aetiologic agents in cases/outbreaks of fever and meningoencephalitis...
  10. doi request reprint Current status of human arboviral diseases in Turkey
    Koray Ergunay
    Virology Unit, Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
    Vector Borne Zoonotic Dis 11:731-41. 2011
    ....
  11. pmc Performance of various commercial assays for the detection of Toscana virus antibodies
    Koray Ergunay
    Department of Medical Microbiology, Virology Unit, Faculty of Medicine, Hacettepe University, Ankara, Turkey
    Vector Borne Zoonotic Dis 11:781-7. 2011
    ..The aim of this study was to perform comparative evaluation of commercially available serological assays for anti-TOSV immunoglobulins...
  12. ncbi request reprint [Confirmation of West Nile virus seroreactivity in central nervous system infections of unknown etiology from Ankara Province, Central Anatolia, Turkey]
    Koray Ergunay
    Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Virology Unit, Ankara, Turkey
    Mikrobiyol Bul 45:381-3. 2011
    ..The sample was observed as positive in dilutions of 1/20 and 1/40, thus confirming the diagnosis of WNV-related central nervous system infection in a 62 year-old female patient from Ankara, Central Anatolia, Turkey...
  13. doi request reprint Utility of a commercial quantitative hepatitis C virus core antigen assay in a diagnostic laboratory setting
    Koray Ergunay
    Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
    Diagn Microbiol Infect Dis 70:486-91. 2011
    ..9%. Detection and quantification of HCV core antigen have been observed as a strong alternative to nucleic acid testing for HCV monitorization...
  14. doi request reprint Confirmed exposure to tick-borne encephalitis virus and probable human cases of tick-borne encephalitis in Central/Northern Anatolia, Turkey
    K Ergunay
    Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
    Zoonoses Public Health 58:220-7. 2011
    ..Probable cases of TBE have also been identified from Central Anatolia. The epidemiology of TBEV activity in Turkey needs to be assessed and benefits of vaccination for general population, risk groups or travellers must be considered...
  15. ncbi request reprint [Investigation of West Nile virus in central nervous system infections of unknown etiology in Ankara, Turkey]
    Koray Ergunay
    Hacettepe Universitesi Tip Fakultesi, Tibbi Mikrobiyoloji Anabilim Dali, Ankara
    Mikrobiyol Bul 44:255-62. 2010
    ..In conclusion, in order to fully understand the impact of WNV and/or other flavivirus infections in Turkey, epidemiology and ecological features of these agents need to established...
  16. doi request reprint West Nile virus seroprevalence in blood donors from Central Anatolia, Turkey
    Koray Ergunay
    Virology Unit, Department of Microbiology and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
    Vector Borne Zoonotic Dis 10:771-5. 2010
    ..Data on WNV activity in Turkey are currently limited. This study investigated WNV exposure in blood donors from Central Anatolia, Turkey...
  17. ncbi request reprint Seroprevalence of West Nile virus and tick-borne encephalitis virus in southeastern Turkey: first evidence for tick-borne encephalitis virus infections
    Koray Ergunay
    Faculty of Medicine, Department of Microbiology and Clinical Microbiology, Hacettepe University Ankara, Turkey
    Vector Borne Zoonotic Dis 7:157-61. 2007
    ..These results suggest the presence of possible human WNV and TBEV infections in southeastern Turkey where vector activity have previously been detected...
  18. ncbi request reprint [Human papilloma virus DNA in cervical samples with cytological abnormalities and typing of the virus]
    Koray Ergunay
    Mikrobiyol Bul 41:219-26. 2007
    ....
  19. ncbi request reprint [Investigation of anti-R7V antibodies in HIV-infected patients under highly active antiretroviral therapy]
    Koray Ergunay
    Hacettepe Universitesi Tip Fakultesi, Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dali, Ankara
    Mikrobiyol Bul 42:413-9. 2008
    ..Clinical impact of anti-R7V antibody assays for the management of HIV-infected patients will be revealed in the near future with the help of advanced studies...
  20. doi request reprint Testicular persistence of Parvovirus B19: evidence for preferential infection of germ cell tumors
    Koray Ergunay
    Department of Clinical Microbiology, Hacettepe University, Ankara, Turkey
    Pathol Res Pract 204:649-53. 2008
    ..Viral persistence in normal testis, germ cell aplasia tissues, or hepatic/splenic tissues was not observed in this study...
  21. ncbi request reprint [Detection and typing of human papilloma virus by polymerase chain reaction and hybridization assay in cervical samples with cytological abnormalities]
    Koray Ergunay
    Hacettepe Universitesi Top Fakültesi, Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dali, Ankara
    Mikrobiyol Bul 42:273-82. 2008
    ..2%); type 58 (3/22; 13.6%); types 31, 42 and 59 (2/22; 9.1%) and others (1/22, 4.5%). As a result our data have indicated the abundance of high risk HPV isolates and infections with multiple HPV types in that specific area...
  22. ncbi request reprint West Nile virus studies in the Sanliurfa Province of Turkey
    Nurdan Ozer
    Hacettepe University, Science Faculty, Department of Biology, 06532 Beytepe, Ankara, Turkey
    J Vector Ecol 32:202-6. 2007
    ..On the basis of these results, we intend to collect more mosquito samples especially from those areas from which positive serum samples were obtained...
  23. ncbi request reprint [Investigation of occult hepatitis B in HIV infected patients]
    Akif Altinbas
    Hacettepe University Faculty of Medicine, Department of Internal Medicine, Ankara, Turkey
    Mikrobiyol Bul 45:353-8. 2011
    ..In conclusion, further large-scale studies are required to fully understand the impact of occult HBV in HIV-infected patients in Turkey...
  24. ncbi request reprint [Investigation of West Nile virus seroprevalence in Hacettepe University Hospital blood donors and confirmation of the positive results by plaque reduction neutralization test]
    Seniz Ayturan
    Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
    Mikrobiyol Bul 45:113-24. 2011
    ..The data of this study indicated that the prevalence of WNV infections, although low in our region, deserves attention to be considered in surveillance and control programs related to WNV in Turkey...
  25. ncbi request reprint [Detection of resistance mutations in chronic hepatitis B patients receiving antiviral therapy for over one year]
    Sibel Aydogan
    Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
    Mikrobiyol Bul 47:472-81. 2013
    ..As a result, SEQ and LiPAs displayed comparable performances for the detection of HBV drug resistance mutations. We suggested that for the evaluation of discordant results, it should be better to test consecutive serum samples...
  26. ncbi request reprint Detection of TT virus (TTV) by three frequently-used PCR methods targeting different regions of viral genome in children with cryptogenic hepatitis, chronic B hepatitis and hbs carriers
    Koray Ergunay
    Department of Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
    Turk J Pediatr 50:432-7. 2008
    ..A significant agreement between PCR methods that target UTR was observed. TTV detection rate increased with age, suggesting a non-parenteral, environmental exposure to the virus for the study population...
  27. ncbi request reprint TTV infection in children with and without liver disease
    Ender Odemis
    Department of Pediatrics, Hacettepe University School of Medicine, 06100 Sihhiye, Ankara, Turkey
    Indian J Gastroenterol 23:135-7. 2004
    ..TTV DNA has been reported in patients with a broad spectrum of hepatic disorders as well as in healthy people...
  28. ncbi request reprint [Occult hepatitis B infection]
    Koray Ergunay
    Hacettepe Universitesi Tip Fakultesi, Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dali, Ankara
    Mikrobiyol Bul 39:241-9. 2005
    ..In this review article, the importance of occult hepatitis B infection has been discussed with a focus on pathogenesis, clinical significance and diagnostic laboratory methods...
  29. ncbi request reprint Transfusion-transmitted virus prevalence in Turkish patients with thalassemia
    Emel Ozyurek
    Department of Paediatrics, Section of Hematology, Hacettepe University, Medical School, Ankara, Turkey
    Pediatr Hematol Oncol 23:347-53. 2006
    ..In conclusion, in Turkish patients with thalassemia, TTV infection cannot be considered as a risk factor for liver disease...
  30. ncbi request reprint [Phenotypic and genotypic identification of Candida strains isolated as nosocomial pathogens]
    Fatih Sahiner
    Gülhane Millitary Medical Academy, Haydarpasa Training Hospital, Department of Medical Microbiology, Istanbul, Turkey
    Mikrobiyol Bul 45:478-88. 2011
    ..Since these phenotypic methods were simple and cost effective when compared to molecular techniques, they should be considered in the identification of Candida species...
  31. doi request reprint Species distribution and detection of Crimean Congo Hemorrhagic Fever Virus (CCHFV) in field-collected ticks in Ankara Province, Central Anatolia, Turkey
    Olcay Hekimoglu
    Ecology Division, Department of Biology, Faculty of Science, Hacettepe University, 06800 Beytepe Ankara, Turkey
    Exp Appl Acarol 56:75-84. 2012
    ..This is the first documentation of CCHFV activity in ticks from Ankara province, which indicates requirement for detailed surveillance to predict high risk zones in the region...
  32. doi request reprint Arboviral surveillance of field-collected mosquitoes reveals circulation of West Nile virus lineage 1 strains in Eastern Thrace, Turkey
    Koray Ergunay
    1 Department of Medical Microbiology, Virology Unit, Faculty of Medicine, Hacettepe University, Sihhiye Ankara, Turkey
    Vector Borne Zoonotic Dis 13:744-52. 2013
    ..This study was performed to provide preliminary data from Eastern Thrace region, Turkey, where no arbovirus vector surveillance has previously been performed...
  33. ncbi request reprint [RNA interference: mechanism and applications]
    Koray Ergunay
    Hacettepe Universitesi Tip Fakultesi, Mikrobiyoloji ve Klinik Mikrobiyoloji Anabilim Dali, Ankara
    Mikrobiyol Bul 38:285-94. 2004
    ..In this review, the mechanism of RNA interference and its therapeutic applications have been discussed, focusing on viral diseases...
  34. doi request reprint Real-time PCR detection of Helicobacter pylori and virulence-associated cagA in nasal polyps and laryngeal disorders
    Mustafa Ozyurt
    Department of Microbiology and Clinical Microbiology, Gulhane Military Medical Academy, Haydarpasa Training Hospital, Istanbul, Turkey
    Otolaryngol Head Neck Surg 141:131-5. 2009
    ..To identify Helicobacter pylori and major virulence factor, cagA, in patients with laryngeal diseases and nasal polyps...