1. Imipenem resistance among gram-negative bacilli

   • J. P. Quinn

   Editorial Pages: 203 - 204

2. Use of pooled residual laboratory sera to assess human immunodeficiency virus prevalence among patients in Italy

   • V. Puro
   • E. Lo Presti
   • the Italian Study Group on Occupational Risk of HIV Infection

   Article Pages: 205 - 211

3. Immunogenicity of a recombinant pre-S2-containing hepatitis B vaccine versus plasma-derived vaccine administered as a booster

   • B. Bucher
   • P. Francioli
   • P. C. Frei

   Article Pages: 212 - 217

4. DisseminatedTrichosporon beigelii infection in patients with malignant diseases: Immunohistochemical study and review

   • T. Tashiro
   • H. Nagai
   • S. Akizuki

   Article Pages: 218 - 224

5. Construction of a DNA amplification assay for detection ofLegionella species in clinical samples

   • G. Lisby
   • R. Dessau

   Article Pages: 225 - 231

6. Identification ofShigella species in stool specimens by DNA amplification of different loci of theShigella virulence plasmid

   • M. Yavzori
   • D. Cohen
   • S. Ashkenazi

   Article Pages: 232 - 237

7. Definition and determination of in vitro antibiotic susceptibility breakpoints for Bacteria in France

   • C. J. Soussy
   • R. Cluzel
   • the Comité de l'Antibiogramme de la Société Française de Microbiologie

   Antimicrobial Agent Report Pages: 238 - 246

8. Fulminant septicaemia due toStreptococcus milleri infection in a previously healthy adult

   • P. G. Flanagan
   • R. G. Mills

   Notes Pages: 247 - 248

9. Routine laboratory diagnosis of continuous ambulatory peritoneal dialysis peritonitis using centrifugation/lysis and saponin-containing media

   • P. C. Taylor

   Notes Pages: 249 - 252

10. Helicobacter pylori in a costa rican dyspeptic patient population

    • B. Morera-Brenes
    • R. Sierra
    • C. E. Nord

    Notes Pages: 253 - 257

11. Evaluation of two new chromogenic media for detection ofSalmonella in stools

    • I. Monnery
    • A. M. Freydiere
    • Y. Gille

    Notes Pages: 257 - 261

12. False positive widal reaction in high-titer disseminated BCG infection

    • A. Skoutelis
    • G. Dimitrakopoulos
    • H. Bassaris

    Notes Pages: 261 - 263

13. Evaluation of a commercial DNA probe assay for the identification ofMycobacterium kansasii

    • E. Tortoli
    • M. T. Simonetti
    • V. Morbiducci

    Notes Pages: 264 - 267

14. Detection of hepatitis B virus DNA and determination of surface antigen expression in peripheral blood mononuclear cells from patients with AIDS

    • C. Malavé Lara
    • M. T. Gorriño
    • R. Cisterna

    Notes Pages: 267 - 271

15. Detection of human immunodeficiency virus type 1 by PCR before seroconversion in high-risk individuals who remain seronegative for prolonged periods

    • M. T. Gorriño
    • C. Campelo
    • R. Cisterna

    Notes Pages: 271 - 276

16. Evaluation of a rapid enzyme immunoassay for the detection ofClostridium difficile in stools

    • F. Barbut
    • R. Revel
    • J. C. Petit

    Letters Pages: 277 - 278

17. Isolation ofActinomyces meyeri from percutaneous disc biopsy specimens following lumbar disc surgery

    • N. Marquet-Van Der Mee
    • P. Goupille

    Letters Pages: 278 - 280

18. Discordance between four second-generation enzyme immunoassay kits in anti-hepatitis C virus screening

    • Y. Lazizi
    • The Study Group of the Laboratoires de Virologie des Centres Hospitaliers Universitaires français

    Letters Pages: 280 - 281

19. Breakpoint determination: Cefepime

    Reports Of The European Study Group On Antibiotic Breakpoints Pages: 282 - 283

20. Breakpoint determination: Sparfloxacin

    Reports Of The European Study Group On Antibiotic Breakpoints Pages: 283 - 284

21. Announcements

    Announcement Pages: 285 - 286