1. Concurrent antigenic analysis of recent epidemic influenza A and B viruses and quantitation of antibodies in population serosurveys in Italy

   • I. Donateli
   • L. Campitelli
   • J. S. Oxford

   OriginalPaper Pages: 241 - 250

2. Investigation of an outbreak of Salmonella typhi in a public school in Madrid

   • M. A. Usera
   • A. Aladueña
   • M. Lopez-Brea

   OriginalPaper Pages: 251 - 254

3. A longitudinal study on the incidence and transmission patterns of HIV, HBV and HCV infection among drug users in Amsterdam

   • E. J. C. van Ameijden
   • J. A. R. Van Den Hoek
   • R. A. Coutinho

   OriginalPaper Pages: 255 - 262

4. Validity of the cross-sectional study for the ascertainment of nosocomial infection risk factors

   • E. Jiménez-Romano
   • J. I. Blanco
   • R. Gálvez-Vargas

   OriginalPaper Pages: 263 - 268

5. Comparison of western blot and microimmunofluorescence as tools for lyme disease seroepidemiology

   • J. P. Arzouni
   • M. Laveran
   • D. Raoult

   OriginalPaper Pages: 269 - 273

6. The incidence of Acquired Immune Deficiency Syndrome (AIDS) and tuberculosis (TB) in the hospital “La Fe” of Valencia, Spain (1985–1989)

   • M. M. Morales
   • A. Llopis
   • L. Sanjuan

   OriginalPaper Pages: 274 - 278

7. Sexual transmission of hepatitis C virus and HIV-1 infection in female intravenous drug users

   • A. Salvaggio
   • M. Conti
   • L. Salvaggio

   OriginalPaper Pages: 279 - 284

8. Cardiovascular risk and all-cause mortality; A 12 year follow-up study in The Netherlands

   • A. W. Hoes
   • D. E. Grobbee
   • A. Hofman

   OriginalPaper Pages: 285 - 292

9. Unexpected effects of coffee consumption on liver enzymes

   • E. Casiglia
   • P. Spolaore
   • B. Ambrosio

   OriginalPaper Pages: 293 - 297

10. Relations of cardiovascular risk factors to aortic pulse wave velocity in asymptomatic middle-aged women

    • A. Taquet
    • C. Bonithon-Kopp
    • L. Guize

    OriginalPaper Pages: 298 - 306

11. Hepatitis B mass immunization of adolescents: A pilot study in a community

    • S. Plaitano
    • L. Sagliocca
    • P. Pasquini

    OriginalPaper Pages: 307 - 310

12. Duration of the immune response to MMR vaccine in children of two age-different groups

    • S. Li Volti
    • G. Giammanco-Bilancia
    • G. Giammanco

    OriginalPaper Pages: 311 - 314

13. Comparisons between degree of histological gastritis and DNA fingerprints, cytotoxicity and adhesivity of Helicobacter pylori from different gastric sites

    • R. J. Owen
    • M. Desai
    • R. A. Musmanno

    OriginalPaper Pages: 315 - 321

14. Seroepidemiology, morbidity and vaccination strategies against rubella infection. Eight years experience in oltrepo pavese

    • C. Pelissero
    • C. Marena
    • F. Rebasti

    OriginalPaper Pages: 322 - 326

15. Improvement of Clostridium difficile isolation by heat-shock and typing of the isolated strains by SDS-page

    • M. Lahn
    • G. Tyler
    • U. Hadding

    OriginalPaper Pages: 327 - 334

16. Urinary tract infections in the city of Florence: Epidemiological considerations over a twenty-year period

    • G. Corti
    • E. Giganti
    • P. Nicoletti

    OriginalPaper Pages: 335 - 340

17. Seroprevalence to some torch agents in a sicilian female population of fertile age

    • F. Condorelli
    • G. Scalia
    • A. Castro

    Brief Reports Pages: 341 - 343

18. Antibodies to Rickettsia conorii in dogs: Seasonal differences

    • E. Espejo
    • M. D. Alegre
    • F. Bella

    Brief Reports Pages: 344 - 346

19. Seroepidemiological survey of HTLV-I infection in French Polynesia, Cook Islands and Fiji

    • E. Chungue
    • J. P. Boutin
    • J. F. Roux

    Brief Reports Pages: 347 - 350

20. Prevalence of HTLV-II in HIV-1-infected drug addicts in Marseille

    • C. Vignoli
    • C. Zandotti
    • Ph. De Micco

    Letter to the Editor Pages: 351 - 352