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Yazar "Tezcan, Seda" seçeneğine göre listele

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  • Küçük Resim Yok
    Öğe
    Evaluation of 2015-2016 MOTAKK HBV DNA and HCV RNA External Quality Assessment National Program Results
    (Ankara Microbiology Soc, 2018) Karatayli, Ersin; Soydemir, Ege; Aksoy, Zeynep Busra; Kizilpinar, Mehtap; Altay Kocak, Aylin; Karatayli, Senem Ceren; Yurdcu, Esra; Yildirim, Umut; Guriz, Haluk; Bozdayi, Gulendam; Yurdaydin, Cihan; Ilhan, Osman; Yildirim, Yasin; Bozdayi, A. Mithat; Oguz, Acelya Yalcintas; Baris, Ahmet; Alp, Alpaslan; Aksozek, Alper; Sayiner, Arzu; Karagul, Aydan; Ordu, Aylin; Istanbullu, Aye; Otlu, Baris; Aridogan, Buket; Aksu, Burak; Buruk, C. Kurtulus; Karahan, Ceren; Guney, Cakir; Toksoz, Devrim; Yildirim, Dilara; Colak, Dilek; Daglar, Duygu Eren; Findik, Duygu; Kas, Elif; Caliskan, Emel; Zeyrek, Fadile Yildiz; Arslan, Fatma; Demir, Feyza; Milletli, Fikriye; Kibar, Filiz; Ozdincer, Furkan; Dundar, Gulnur; Arslan, Hande; Agca, Harun; Aliskan, Hikmet Eda; Guducuoglu, Huseyin; Fidan, Isil; Akyar, Isin; Afsar, Ilhan; Kaleli, Ilknur; Donmez, Ismail; Yanik, Kemalettin; Midilli, Kenan; Cubukcu, Kivanc; Ozdemir, Mehmet; Acar, Melek; Yalinay, Meltem; Kuskucu, Mert Ahmet; Bakici, Mustafa Zahir; Aydin, Neriman; Yilmaz, Neziha; Ceken, Nihan; Ziyade, Nihan; Yilmaz, Nisel; Ozgumus, Osman Birol; Gitmisoglu, Ozlem; Demirgan, Recep; Kesli, Recep; Guckan, Ridvan; Sertoz, Ruchan; Akgun, Sadik; Aksaray, Sebahat; Tezcan, Seda; Kaygusuz, Sedat; Gokahmetoglu, Selma; Mese, Sevim; Bayik, Seyit Ahmet; Akcali, Sinem; Gurcan, Saban; Karsligil, Tekin; Us, Tercan; Ozekinci, Tuncer; Pilgir, Tulin; Aslan, Ugur; Dinc, Ugur; Coskun, Umut Safiye Say; Cetinkol, Yeliz; Keskin, Yusuf; Ayaydin, Zeynep; Toraman, Zulal Asci
    MOTAKK, as a national external quality control program has been launched to evaluate the molecular detection of viral infections including HBV DNA and HCV RNA in molecular microbiology diagnostic laboratories in Turkey. This program is prepared in compliance with ISO 17043:2010 (Conformity assessment general requirements for proficiency testing) standards, and aims to take the place of external quality control programs from abroad, contributing to standardization and accuracy of molecular diagnostic tests in our country. The aim of this study was to evaluate 2015 and 2016 results of the MOTAKK External Quality Control Program for HBV DNA and HCV RNA viral load. The calls were announced on the web page of MOTAKK (www.motakk.org). The quality control samples were sent to participating laboratories in 2015 and 2016. Main stocks were prepared from patients with chronic hepatitis B and C who had viral load detection with reference methods according to WHO reference materials for viral load studies to improve quality control sera. From these main stocks, samples with different viral loads were prepared from dilutions of plasma with HBV, HCV, HAV, HIV, Parvovirus B19 and CMV negative serologic markers. Quality control samples were sent to the participating laboratories along with the negative samples in the cold chain. The laboratories accomplished the related tests within 2-3 weeks and entered their results on the MOTAKK web page. These results were analysed according to ISO 13528 (Statistical methods for use in proficiency testing by interlaboratory comparison) and scoring reports were created by a software developed by MOTAKK and sent to participating labs. Each laboratory evaluated their own results in comparison with the other laboratory results, reassessed the tests via observing the distance from the mean result and the reference values. The number of laboratories participating in the HBV DNA and HCV RNA external quality control program was 70-73 in 2015-2016. Participants were able to comply with the program tools, registering, entering results and receiving the results reports problem. In HBV panel, 72.6-89.1% and 84.7-90.3% of the participant laboratories were in 1 standard deviation (SD) in 2015-2016, respectively. In HCV panel, 70.8-89.1% and 84.7-90.3% of the participant laboratories were in 1 SD in 2015-2016, respectively. A national external quality control program for HBV DNA and HCV RNA in Turkey has been prepared for the first time with this project and implemented successfully. All the data provided in the MOTAKK external quality control program final report, compensate all the data provided by the quality control program final reports from abroad; additionally, the report allows comparison of used technologies and commercial products.
  • Küçük Resim Yok
    Öğe
    Isolation, Genetic Characterization, and Seroprevalence of Adana Virus, a Novel Phlebovirus Belonging to the Salehabad Virus Complex, in Turkey
    (Amer Soc Microbiology, 2015) Alkan, Cigdem; Alwassouf, Sulaf; Piorkowski, Geraldine; Bichaud, Laurence; Tezcan, Seda; Dincer, Ender; Ergunay, Koray; Ozbel, Yusuf; Alten, Bulent; de Lamballerie, Xavier; Charrel, Remi N.
    A new phlebovirus, Adana virus, was isolated from a pool of Phlebotomus spp. (Diptera; Psychodidae) in the province of Adana, in the Mediterranean region of Turkey. Genetic analysis based on complete coding of genomic sequences indicated that Adana virus belongs to the Salehabad virus species of the genus Phlebovirus in the family Bunyaviridae. Adana virus is the third virus of the Salehabad virus species for which the complete sequence has been determined. To understand the epidemiology of Adana virus, a seroprevalence study using microneutralization assay was performed to detect the presence of specific antibodies in human and domestic animal sera collected in Adana as well as Mersin province, located 147 km west of Adana. The results demonstrate that the virus is present in both provinces. High seroprevalence rates in goats, sheep, and dogs support intensive exposure to Adana virus in the region, which has not been previously reported for any virus included in the Salehabad serocomplex; however, low seroprevalence rates in humans suggest that Adana virus is not likely to constitute an important public health problem in exposed human populations, but this deserves further studies. IMPORTANCE Until recently, in the genus Phlebovirus, the Salehabad virus species consisted of two viruses: Salehabad virus, isolated from sand flies in Iran, and Arbia virus, isolated from sand flies in Italy. Here we present the isolation and complete genome characterization of the Adana virus, which we propose to be included in the Salehabad virus species. To our knowledge, this is the first report of the isolation and complete genome characterization, from sand flies in Turkey, of a Salehabad virus-related phlebovirus with supporting seropositivity in the Mediterranean, Aegean, and Central Anatolia regions, where phleboviruses have been circulating and causing outbreaks. Salehabad species viruses have generally been considered to be a group of viruses with little medical or veterinary interest. This view deserves to be revisited according to our results, which indicate a high animal infection rate of Adana virus and recent evidence of human infection with Adria virus in Greece.
  • Küçük Resim Yok
    Öğe
    Isolation, Genetic Characterization, and Seroprevalence of Adana Virus, a Novel Phlebovirus Belonging to the Salehabad Virus Complex, in Turkey
    (Amer Soc Microbiology, 2015) Alkan, Cigdem; Alwassouf, Sulaf; Piorkowski, Geraldine; Bichaud, Laurence; Tezcan, Seda; Dincer, Ender; Ergunay, Koray; Ozbel, Yusuf; Alten, Bulent; de Lamballerie, Xavier; Charrel, Remi N.
    A new phlebovirus, Adana virus, was isolated from a pool of Phlebotomus spp. (Diptera; Psychodidae) in the province of Adana, in the Mediterranean region of Turkey. Genetic analysis based on complete coding of genomic sequences indicated that Adana virus belongs to the Salehabad virus species of the genus Phlebovirus in the family Bunyaviridae. Adana virus is the third virus of the Salehabad virus species for which the complete sequence has been determined. To understand the epidemiology of Adana virus, a seroprevalence study using microneutralization assay was performed to detect the presence of specific antibodies in human and domestic animal sera collected in Adana as well as Mersin province, located 147 km west of Adana. The results demonstrate that the virus is present in both provinces. High seroprevalence rates in goats, sheep, and dogs support intensive exposure to Adana virus in the region, which has not been previously reported for any virus included in the Salehabad serocomplex; however, low seroprevalence rates in humans suggest that Adana virus is not likely to constitute an important public health problem in exposed human populations, but this deserves further studies. IMPORTANCE Until recently, in the genus Phlebovirus, the Salehabad virus species consisted of two viruses: Salehabad virus, isolated from sand flies in Iran, and Arbia virus, isolated from sand flies in Italy. Here we present the isolation and complete genome characterization of the Adana virus, which we propose to be included in the Salehabad virus species. To our knowledge, this is the first report of the isolation and complete genome characterization, from sand flies in Turkey, of a Salehabad virus-related phlebovirus with supporting seropositivity in the Mediterranean, Aegean, and Central Anatolia regions, where phleboviruses have been circulating and causing outbreaks. Salehabad species viruses have generally been considered to be a group of viruses with little medical or veterinary interest. This view deserves to be revisited according to our results, which indicate a high animal infection rate of Adana virus and recent evidence of human infection with Adria virus in Greece.
  • Küçük Resim Yok
    Öğe
    Isolation, Genetic Characterization, and Seroprevalence of Adana Virus, a Novel Phlebovirus Belonging to the Salehabad Virus Complex, in Turkey
    (Amer Soc Microbiology, 2015) Alkan, Cigdem; Alwassouf, Sulaf; Piorkowski, Geraldine; Bichaud, Laurence; Tezcan, Seda; Dincer, Ender; Ergunay, Koray; Ozbel, Yusuf; Alten, Bulent; de Lamballerie, Xavier; Charrel, Remi N.
    A new phlebovirus, Adana virus, was isolated from a pool of Phlebotomus spp. (Diptera; Psychodidae) in the province of Adana, in the Mediterranean region of Turkey. Genetic analysis based on complete coding of genomic sequences indicated that Adana virus belongs to the Salehabad virus species of the genus Phlebovirus in the family Bunyaviridae. Adana virus is the third virus of the Salehabad virus species for which the complete sequence has been determined. To understand the epidemiology of Adana virus, a seroprevalence study using microneutralization assay was performed to detect the presence of specific antibodies in human and domestic animal sera collected in Adana as well as Mersin province, located 147 km west of Adana. The results demonstrate that the virus is present in both provinces. High seroprevalence rates in goats, sheep, and dogs support intensive exposure to Adana virus in the region, which has not been previously reported for any virus included in the Salehabad serocomplex; however, low seroprevalence rates in humans suggest that Adana virus is not likely to constitute an important public health problem in exposed human populations, but this deserves further studies. IMPORTANCE Until recently, in the genus Phlebovirus, the Salehabad virus species consisted of two viruses: Salehabad virus, isolated from sand flies in Iran, and Arbia virus, isolated from sand flies in Italy. Here we present the isolation and complete genome characterization of the Adana virus, which we propose to be included in the Salehabad virus species. To our knowledge, this is the first report of the isolation and complete genome characterization, from sand flies in Turkey, of a Salehabad virus-related phlebovirus with supporting seropositivity in the Mediterranean, Aegean, and Central Anatolia regions, where phleboviruses have been circulating and causing outbreaks. Salehabad species viruses have generally been considered to be a group of viruses with little medical or veterinary interest. This view deserves to be revisited according to our results, which indicate a high animal infection rate of Adana virus and recent evidence of human infection with Adria virus in Greece.

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