Browsing by Author "Al-Hatmi, Abdullah M.S."
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Item Emergence of fusarioses in a university hospital in Turkey during a 20-year period(Springer, 2015-08) Al-Hatmi, Abdullah M.S.; Seyedmousavi, Seyedmojtaba; Rijs, Antonius J.M.M.; Verweij, Paul E.; De Hoog, Gerrit Sybren; Van Diepeningen, Anne D.; Cilo, Burcu Dalyan; Ener, Beyza; Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Mikrobiyoloji Anabilim Dalı.; 0000-0002-4803-8206; AAG-8523-2021; 36620979500; 15053025300Fusarium species have started appearing increasingly as the main cause of infections, particularly in immunocompromised patients. In this study, we aimed to present the first epidemiological data from Turkey, analyze fusariosis cases that have been monitored in a university hospital during the past 20 years, identify the responsible Fusarium species, and determine antifungal susceptibilities. A total of 47 cases of fusariosis was included in the study. Fusarium isolates were identified by multilocus sequence typing (MLST). Antifungal susceptibility was tested by the broth microdilution method according to the Clinical and Laboratory Standards Institute (CLSI) methodology. Of the Fusarium infections, 23.4 % were superficial, 44.7 % were locally invasive, and 31.9 % were disseminated. A significant increase was observed over the years. The Fusarium fujikuroi species complex (FFSC) proved to be the most frequent agent group (17 cases; 51.5 %), followed by the Fusarium solani species complex (FSSC) (14 cases; 42.4 %), the Fusarium dimerum species complex (FDSC), and the Fusarium oxysporum species complexes (FOSC) (one case each). Amphotericin B had the highest in vitro activity against all species. Voriconazole and posaconazole showed interspecies variability across and within Fusarium species complexes. In conclusion, our data support the fact that regional differences exist in the distribution of the Fusarium species and that species-specific differences are observed in antifungal susceptibility patterns. The monitoring of local epidemiological data by determining fungal identity and susceptibility are of importance in guiding the clinical follow-up of patients.Item Fatal breakthrough infection with Fusarium andiyazi: New multi-resistant aetiological agent cross-reacting with Aspergillus galactomannan enzyme immunoassay(Wiley, 2014-04) van Diepeningen, Anne D.; Meijer, Martin; Al-Hatmi, Abdullah M.S.; Kebabçı, Nesrin; Ener, Beyza; Ersal, Tuba; Özkocaman, Vildan; Ursavaş, Ahmet; Çetinoğlu, Ezgi Demirdöğen; Akalın, Halis; Uludağ Üniversitesi/Tıp Fakültesi/Enfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Mikrobiyoloji Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Göğüs Hastalıkları Anabilim Dalı.; 0000-0002-4803-8206; AAJ-4354-2021; AAI-3169-2021; AAH-1854-2021; AAG-8523-2021; AAU-8952-2020; 56060994000; 15053025300; 56061031700; 6603145040; 8329319900; 57189524206; 57207553671Disseminated infections caused by members of the Fusarium fujikuroi species complex (FFSC) occur regularly in immunocompromised patients. Here, we present the first human case caused by FFSC-member Fusarium andiyazi. Fever, respiratory symptoms and abnormal computerised tomography findings developed in a 65-year-old man with acute myelogenous leukaemia who was under posaconazole prophylaxis during his remission-induction chemotherapy. During the course of infection, two consecutive blood galactomannan values were found to be positive, and two blood cultures yielded strains resembling Fusarium species, according to morphological appearance. The aetiological agent proved to be F. andiyazi based on multilocus sequence typing. The sequencing of the internal transcribed spacer region did not resolve the closely related members of the FFSC, but additional data on partial sequence of transcription elongation factor 1 alpha subunit did. A detailed morphological study confirmed the identification of F. andiyazi, which had previously only been reported as a plant pathogen affecting various food crops.