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Chlamydia trachomatis (C. trachomatis) is the most common bacterial causative agent of sexually transmitted diseases today. Treatment outcome will depend on the choice of antimicrobial drug. Therefore, it is very important to know antimicrobial sensitivity of this pathogen. Cultivation in cell culture is a method of choice for diagnosis of C. trachomatis infection, in terms of medico-legal investigations and follow-up after completed therapy, but also serves for determining the antimicrobial sensitivity of C. trachomatis. Tetracyclines, macrolides and kinolones are commonly used in the treatment of the C. trachomalis infection. Resistance to these antibiotics was described for strains isolated from unsuccessfully treated patients. All described resistant clinical strains demonstrated in vitro heterotypic resistance. To date no homotypic resistance was described for human isolates. An evaluation of antimicrobial resistance and treatment outcome in C. trachomatis infection is complicated by the lack of standardized tests, as well as by the fact that in vitro resistance does not correlate with clinical outcome. In case of any suspicion of unsuccessful treatment of genitourinary infection caused by C. trachomatis isolation should be attempted and isolated strains forwarded to a specialized laboratory. [ABSTRACT FROM AUTHOR]

We investigated the distribution of memory (CD45RO+) and naive (CD45RA+CD62L+) CD4+ T-cells as well as CD8+ T-cells and total T-cells in the CSF of children with aseptic meningitis following measles-mumps-rubella (MMW) vaccination and those with enteroviral meningitis. Flow cytometric analysis of CSF cells was performed in 12 children with MMR vaccine-associated meningitis and 11 children with enteroviral meningitis. Percentages of total T-cells, CD4+ and CD8+ T-cells and monocytes in CSF of patients from the two groups were not significantly different. The majority of CD4+ T-cells in the CSF of both patient groups were of memory phenotype. Percentages of CSF naive CD4+ T-cells were increased in children with aseptic meningitis following MMR vaccination. Further studies focused on the more detailed immunophenotyping of CSF cells are needed to fully establish the usefulness of flow cytometry in the diagnostic workup of inflammatory CNS diseases in children. [ABSTRACT FROM AUTHOR]

Research and publication expenses were supported in part by the Croatian Science Foundation and PLIVA Croatia Ltd. (project no. 04/30 'Research on the aetiology, epidemiology, diagnostics, and treatment of patients with prostatitis syndrome').