The murein sacculus, the bacterial exoskeleton-structure and function in the bacterium and possible role in the host organism.- Chemical nature and cellular location of adhesins of E. coli.- Genetics of O antigen polysaccharide biosynthesis in Shigella and vaccine development.- Capsular polysaccharides (K antigens) of Escherichia coli.- Biogenesis of Gal?(1–4)GA1 binding p-pili of uropathogenic E. coli.- The evolution of M proteins of Group A Streptococci.- A new family of pore forming proteins, the perforin family, in immune cytolysis by complement and by lymphocytes.- The molecular basis of the interaction of immunoglobulin G with complement and phagocytic cells.- C3 binding to bacterial surfaces.- The mode of C5B-9 attack on susceptible gram negative bacteria.- Salmonella and complement: the critical influence of 0-polysaccharide within LPS.- Ability to activate the alternative complement pathway as a virulence determinant in Salmonellae.- Interaction of Haemophilus influenzae with complement.- Interaction of Pseudomonas aeruginosa with complement.- Complement-mediated opsonization of group A Streptococci inhibited by the binding of fibrinogen to surface M protein fibrillae.- A surface protein of KLebsiella pneumoniae and Escherichia coli that binds phagocytes and inhibits phagocytosis.- Adhesins, serum resistance and cytolysins of E. coli-genetic structure and role in pathogenicity.- Phagocytosis and intracellular biology of Legionella pneumophila.- Induction of inflammation by Escherichia coli at a mucosal site: requirement for adherence and endotoxin.- IgA-armed T lymphocytes as anti-S. typhi effectors in humans.- Interference of a Staphylococcus aureus bacteriolytic enzyme with polymorphonuclear leucocyte functions.- The opsonic capacity of monoclonalantibodies against Escherichia coli 0111 and its rough mutant E. coli J5.- A mutation in Salmonella typhimurium that enhances resistance to oxygen-independent antimicrobial neutrophil protein.- Plasmid-mediated complement and phagocytosis resistance in E. coli.- The relative role of lipopolysaccharide and capsule in the virulence of E. coli.- Lectinophagocytosis of bacteria mediated by carbohydrate-lectin interactions.- Responses of phagocytosis to bacteria.- Non-secretion of ABO blood group antigens and susceptibility to infectious diseases.