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SETTING Five districts in Equatorial Guinea, March 1999 to February 2001. OBJECTIVES To determine tuberculosis drug resistance among new and previously treated cases, the risk factors associated(More)
BACKGROUND Use of selective Clostridium difficile culture as a diagnostic method for C. difficile associated disease requires to prove the toxigenic ability of the isolates. Toxin B detection by cell(More)
A comparison of direct antigen detection in cell scrapings with culture techniques (tube culture and shell vial method) for diagnosis of varicella-zoster virus (VZV) mucocutaneous infections was done(More)
BACKGROUND It is necessary to have an easy and quickly test to distinguish "false positive" rubella IgM results and residual antibodies from the antibodies produced in the primary infection, in(More)