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Publications (2)0.88 Total impact

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    ABSTRACT: Background Group A rotavirus is the leading cause of acute gastroenteritis in children worldwide. We investigated G and P genotypes of group A rotavirus strains isolated from patients during 2013 and investigated which genotypes were identified from vaccinated patients. Methods From January to December 2013, 2235 fecal specimens were tested for rotavirus antigen, of which 374 specimens (16.7%) showed positive results. Strains from 288 rotavirus-positive specimens were genotyped using PCR and sequencing, and individual patients’ corresponding vaccine histories were investigated through the Korean Center for Disease Control website. Results G2 (22.6%) and P[4] (24.0%) were the most frequently identified G and P genotypes, respectively; accordingly, G2P[4] (19.8%) was the most prevalent G/P genotype observed in this period. G4P[6] (10.1%) was the second most prevalent G/P genotype and was mostly detected in neonates. Other genotypes, G1P[8], G9P[8], G1P[6], and G3P[6], were also detected. Of 288 rotavirus-positive specimens, 48 specimens were obtained from previously vaccinated patients. G2P[4] was also the genotype most frequently isolated from vaccinated patients. VP7 epitope analysis of G1P[8] and G2P[4] strains showed at least one amino acid differences in comparison with Rotarix and RotaTeq vaccine strains. The genotypic distribution of rotavirus strains in Korea has been shown temporal and geographical differences. Conclusion This study showed that G2P[4] was the genotype most frequently isolated from both vaccinated and unvaccinated patients in Korea during 2013. However, it is unclear whether the change of predominant genotype is due to the effect of vaccination or due to natural variation.
    Vaccine. 10/2014;
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    ABSTRACT: This study was performed to evaluate the clinical significance of procalcitonin in burn patients and to investigate whether procalcitonin levels at admission can be a prognostic indicator for sepsis and mortality. Between January 2009 and December 2010, procalcitonin levels in 175 patients were tested within the first 48 hours after burn injury. Serum procalcitonin was measured using an enzyme-linked fluorescence assay. Mortality rates and positive culture rates of blood, wound, and sputum were evaluated among the subgroups divided by burn size, procalcitonin levels, and clinical prognosis. Positive blood culture and mortality rates correlated significantly with procalcitonin concentrations within the first 48 hours after burn injury. The area under the ROC curve for procalcitonin related to mortality was 0.844. Survival analysis revealed that the mortality rate was significantly higher in patients with procalcitonin concentrations ≥ 2 ng/mL than in patients with procalcitonin concentrations < 2 ng/mL (P < 0.001). Multivariate analysis demonstrated that procalcitonin was an independent prognostic factor for burn patients (Hazard ratio = 3.16, P = 0.001). Procalcitonin concentrations determined within the first 48 hours after burn injury can be a useful prognostic indicator for sepsis and mortality in burn patients.
    Annals of clinical and laboratory science 01/2012; 42(1):57-64. · 0.88 Impact Factor