Journal of clinical microbiology
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J. Clin. Microbiol. · Nov 2004
Case ReportsGenetic confirmation of quinine-resistant Plasmodium falciparum malaria followed by postmalaria neurological syndrome in a traveler from Mozambique.
A case of quinine-resistant Plasmodium falciparum malaria, followed by a postmalaria neurological syndrome and a recurrence episode, is described. Genetic characterization of the P. falciparum isolate obtained by analysis of msp1 and msp2 amplicons revealed the coexistence of two genotypes causing the first malaria episode and the presence of a unique isolate responsible for the recurrence.
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J. Clin. Microbiol. · Nov 2004
Comparative StudyEvaluation of a multiplexed bead assay for assessment of Epstein-Barr virus immunologic status.
Currently, serological assays using either indirect immunofluorescence assay or enzyme-linked immunosorbent assay (ELISA) are performed to evaluate the status of Epstein-Barr virus (EBV) infection in humans. Although these methods are reliable, they are limited to testing an antibody response to a single viral antigen per reaction, thus necessitating a panel of assays to complete the evaluation. In contrast, a new bead-based method (BioPlex 2200; Bio-Rad Laboratories, Hercules, Calif.) can analyze the humoral response to multiple antigens in a single tube. ⋯ Agreement between the BioPlex 2200 system and conventional testing was 92% with respect to categorization of acute versus nonacute EBV disease. The correlation between these two systems with regard to assignment into one of four categories of EBV status was also good (82%). In summary, there is excellent correlation between contemporary EBV serologic testing and the BioPlex 2200 system.
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J. Clin. Microbiol. · Nov 2004
False-positive Aspergillus galactomannan enzyme-linked immunosorbent assay results in vivo during amoxicillin-clavulanic acid treatment.
Positive Platelia Aspergillus test results were observed in consecutive serum samples from an immunocompromised host during amoxicillin-clavulanic acid treatment, and a correlation between plasmatic amoxicillin concentration and galactomannan optical density index was observed. Amoxicillin-clavulanic acid vials tested positive for galactomannan but were negative for Aspergillus DNA.