In this review we report on progress in the understanding of Helicobacter p
ylori antigens inducing host humoral and cellular responses and the involve
ment of CD4(+) T cells, cytokines and chemokines in bacteria-induced inflam
mation and ulcer formation. New strategies in anti-H. pylori vaccination ar
e also described. Curr Opin Gastroenterol 15 (suppl 1):S17-S21 (C) 1999 Lip
pincott Williams & Wilkins.