Mikrobiyol Bul
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Chikungunya virus (CHIKV) is an arthropod-borne alphavirus that causes an acute febrile illness, chikungunya fever. CHIKV virus is geographically distributed in Africa, India, and South-East Asia. Chikungunya fever outbreaks have been reported from India since 2006. ⋯ This was the first laboratory confirmed imported Chikungunya case in Turkey. There are predictions regarding the presence of Aedes species mosquitos that can transmit this virus in Turkey. This case report will be an alarming signal for the clinicians in our country to consider Chikungunya fever in the differential diagnosis of patients presenting with fever, arthralgia and rash.
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Infections caused by methicillin-resistant Staphylococcus aureus (MRSA) is frequent among hemodialysis patients and lead to increased morbidity and mortality rates. It is known that nasal colonization plays an important role for the development of MRSA infections. The aim of this study was to determine the prevalence and risk factors for MRSA colonization among outpatients undergoing hemodialysis. ⋯ Inducible clindamycin resistance in MRSA isolates was %23.5 (8/34), and multidrug resistance rate was 76.5% (26/34). Multivariate analysis revealed that the history of previous hospitalization within a year [odds ratio (OR), 3.426; 95% confidence interval (CI), 1.595-7.361, p= 0.002] and the presence of chronic obstructive lung disease (OR, 5.181; 95% CI, 1.612-16.648, p= 0.006) were independent risk factors for MRSA colonization in this population. A better understanding of the prevalence and risk factors for nasal MRSA colonization among hemodialysis population may hold significant implications for both the treatment strategies and prevention of MRSA infections to establish appropriate infection control measures.
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Molds are widely distributed in nature. Aspergillus spp. represent the most frequently observed causative agents, however less frequent pathogens Fusarium, Scedosporium and Zygomycetes have also been considered the most important causes of morbidity and mortality in profoundly immunosuppressed hosts. The aims of this study were to identify filamentous fungi isolated from clinical specimens by conventional and molecular methods, and to detect their antifungal susceptibilities. ⋯ E-test and disk diffusion test results were compatible with each other for all the antifungal agents tested. In conclusion, the identification of filamentous fungi such as Aspergillus and Fusarium spp. is easily and reliably achieved by conventional methods. Since the rate of invasive fungal infections is increasing currently, filamentous molds should be searched especially in the clinical specimens of immunocompromised patients for accurate and prompt diagnosis of such infections and to decrease the related mortality risk.
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Rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE) which are autoimmune diseases usually questioned for their association with many infectious agents have etiopathogenesis related to genetic, immunologic, hormonal and even environmental factors. The most commonly attributed etiologic agents are herpes group viruses. The aim of this study was to investigate the role of Epstein-Barr virus (EBV) and herpes simplex (HSV) viruses in the etiology of RA and SLE. ⋯ In conclusion, no significant difference was determined for EBV and HSV serologic markers in RA and SLE patients compared to the control group. However, significantly higher rate of EBV EA/D-IgG positivity in SLE patients might have indicated a possible association between SLE and EBV infection. Larger scale, prospective studies including examination of the synovial fluid/tissue samples are required to enlighten the association between SLE and EBV.
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Fusobacterium necrophorum is a non-spore-forming gram-negative anaerobic bacillus that may be the causative agent of localized or severe systemic infections. Systemic infections due to F.necrophorum are known as Lemierre's syndrome, postanginal sepsis or necrobacillosis. The most common clinical course of severe infections in humans is a progressive illness from tonsillitis to septicemia in previously healthy young adults. ⋯ The detailed history of the patient revealed that fish bone had stuck in his throat a week ago. Clarithromycin and linezolid were discontinued and he was recovered within six weeks of meropenem treatment. F.necrophorum infection should be considered in the differential diagnosis of persistent head and neck infections with rapidly progressive metastatic necrotic lesions especially in healthy young adults and clindamycin or metranidazol should be added to the treatment protocols.