1. Seroepidemiology of pertussis in the Japanese population

   • N. Takayama
   • H. Watanabe
   • M. Minamitani

   Original Investigations Pages: 1 - 8

2. Technical improvements of a commercial ELISA to detect antibodies against bovine herpesvirus 1

   • K. H. Witte
   • P. Hannemann
   • B. Giesendorf

   Original Investigations Pages: 9 - 20

3. Activation of mouse peritoneal macrophages by mannophosphoinositides of mycobacteria

   • P. K. Mehta
   • Gopal K. Khuller

   Original Investigations Pages: 21 - 27

4. Effect of cellular function inhibitors on the infection of Frp/3 cells by hepatitis A virus

   • F. Superti
   • L. Seganti
   • A. Panà

   Original Investigations Pages: 29 - 36

5. Intermediate adenovirus strains of subgenus D occur in extensive variety

   • R. Wigand
   • Th. Adrian

   Original Investigations Pages: 37 - 44

6. Detection of cross-reacting epitopes on plasmid-encoded outer membrane proteins of enteropathogenic Yersinia by monoclonal antibodies

   • Jürgen Weninger
   • Christoph Schoerner
   • Martin Röllinghoff

   Original Investigations Pages: 45 - 51

7. Failure of adherence to buccal cells and surface hydrophobicity as virulence markers in Neisseria meningitidis

   • M. T. Criado
   • V. Sáinz
   • M. J. Souto

   Short Communication Pages: 53 - 59