A new influenza surveillance system in France: The Ile-De-France “GROG”. 2. Validity of indicators (1984–1989) W. DabP. QuenelC. Hannoun OriginalPaper Pages: 579 - 587
Swine and cattle enterotoxigenic Escherichia coli - mediated diarrhea. Development of therapies based on inhibition of bacteria-host interactions M. Mouricout OriginalPaper Pages: 588 - 604
Antipoliomyelitis immunity status among a population that was regularly vaccinated 11–12 years before E. BellelliM. L. TanziP. Affanni OriginalPaper Pages: 605 - 611
History of tonsillectomy and appendectomy in Hodgkin's disease Z. GledovicZ. Radovanovic OriginalPaper Pages: 612 - 615
Dengue surveillance in French Polynesia: An attempt to use the excess number of laboratory requests for confirmation of dengue diagnosis as an indicator of dengue activity E. ChungueJ. P. BoutinJ. Roux OriginalPaper Pages: 616 - 620
Iron and ferritin in Italian subjects A. SalvaggioM. PeritiD. Marzorati OriginalPaper Pages: 621 - 627
Maternal hyperthermia during pregnancy and cardiovascular malformations in the offspring J. TikkanenO. P. Heinonen OriginalPaper Pages: 628 - 635
Epidemiology of crohn's disease in Sicily: A hospital incidence study from 1987 to 1989 M. CottoneC. CipollaThe Sicilian study group of inflammatory bowel disease OriginalPaper Pages: 636 - 640
Surgical infections surveillance: Results of a sixmonth incidence study in two Italian hospitals M. L. MoroSommella L.Tresalti E. OriginalPaper Pages: 641 - 648
Long term observation of the effect of intradermal hepatitis B vaccination on mentally retarded patients J. HayashiA. NoguchiS. Kashiwagi OriginalPaper Pages: 649 - 653
Serum selenium and precursors of cardiovascular risk factors in adolescents A. SpagnoloG. MorisiA. Menotti OriginalPaper Pages: 654 - 657
Seroepidemiological correlations of antibodies to human herpesviruses and human immunodeficiency virus type 1 in African patients S. EssersA. SchwinnV. ter Meulen OriginalPaper Pages: 658 - 664
Hepatitis C virus infection in homosexual men: A seroepidemiological study in gay clubs in North-East Italy V. GaspariniM. ChiaramonteR. Trivello OriginalPaper Pages: 665 - 669
Preoperative stay as a risk factor for nosocomial infection A. Bueno CavanillasR. Rodriguez-ContrerasR. Galvez Vargas OriginalPaper Pages: 670 - 676
Mycobacterium xenopi isolation from clinical specimens in the florence area: Review of 46 cases E. TortoliM. T. SimonettiS. Susini OriginalPaper Pages: 677 - 681
No evidence of HIV-2 infection in subjects at risk for aids living in North-East Italy A. Del MistroA. De RossiL. Chieco-Bianchi OriginalPaper Pages: 682 - 685
Species identification and detection of oxacillin resistance in coagulase-negative Staphylococcus blood isolates from neutropenic patients M. VendittiS. SantilliP. Martino OriginalPaper Pages: 686 - 689
Salmonellosis diagnosed by the laboratory of the ‘L. Sacco’ hospital of Milan (Italy) in patients with HIV disease L. TocalliG. NardiL. Salvaggio OriginalPaper Pages: 690 - 695
Epidemiological aspects of hepatitis B in palermo: Changes in HBV spread V. IntonazzoG. La RosaL. Dardanoni OriginalPaper Pages: 696 - 698
Urethritis caused by Neissena meningitidis: A case report M. QuartoS. BarbutiC. Foti Brief Reports Pages: 699 - 701
Influence of socio-economic and other factors on rheumatic fever occurrence H. VlajinacB. AdanjaM. Jarebinski Brief Reports Pages: 702 - 704
Improved immunoblotting for the detection and quantitative analysis of antibodies to human immunodeficiency virus P. PortincasaG. ContiC. Chezzi Brief Reports Pages: 705 - 708
Smoking behaviour of medical students in Belgrade (Yugoslavia) H. VlajinacB. AdanjaM. Jarebinski Letter to the Editor Pages: 709 - 710
HIV infection in drug using transvestites and transexuals P. GattariG. RezzaU. Tirelli Letter to the Editor Pages: 711 - 712
Creutzfeldt-jakob disease in Italy G. TrabattoniA. LechiM. Pocchiari Letter to the Editor Pages: 713 - 714
Prevention of chromosomal anomalies S. Ayme Second European Symposium on the Prevention Of Congenital Anomalies (28 September 1990, Ferrara — Italy) Pages: 715 - 736