1. Ribavirin: A clinical overview

   • H. Fernandez
   • G. Banks
   • R. Smith

   OriginalPaper Pages: 1 - 14

2. Epidemiologic characteristics of the United States elderly population in the 20th century

   • J. A. Brody
   • D. B. Brock

   OriginalPaper Pages: 15 - 25

3. Epidemic Reiter's syndrome following an outbreak of shigellosis

   • M. Finch
   • G. Rodey
   • P. Blake

   OriginalPaper Pages: 26 - 30

4. Study of endemic scrapie in a flock of ≪ ile de France≫ sheep

   • J. Chatelain
   • H. Baron
   • F. Cathala

   OriginalPaper Pages: 31 - 35

5. Antibody to hepatitis A virus after overt and asymptomatic hepatitis A infection

   • S. A. Prikazchikov
   • M. S. Balayan

   OriginalPaper Pages: 36 - 38

6. Predicting risk among non-respondents in prospective studies

   • K. Sheikh

   OriginalPaper Pages: 39 - 43

7. Serosurney on the presence of leptospiral agglutinins in humans in Northern Italy

   • D. Crevatin
   • E. Banfi
   • M. Cinco

   OriginalPaper Pages: 44 - 47

8. Penicillinase producing Neisseria gonorrhoeae in the United Kingdom

   • M. Shahivianesh
   • R. N. T. Thin

   OriginalPaper Pages: 48 - 51

9. Surveillance of birth defects: The multicommunity sets technique tested by computer simulation

   • G. Barbujani
   • I. Ceccherini
   • A. Russo

   OriginalPaper Pages: 52 - 62

10. Plasmid profiles of legionella pneumophila strains isolated in Spain

    • A. Mellado
    • J. Agütero
    • L.M. Rodriguez-Solorzano

    OriginalPaper Pages: 63 - 66

11. Brucella phagotypes : Their relation to the spread of infection in Italy

    • G. Gargani
    • F. Tolari

    OriginalPaper Pages: 67 - 79

12. Carpyloracter infections and erythema nodosum

    • M. Galeazzi
    • L. Palombi
    • A. Pana

    Letter to the editor Pages: 80 - 81

13. Erratum

    Erratum Pages: 81 - 81

14. Announcements

    Announcement Pages: 82 - 82