This supplement reports the characterization of 24 new Salmonella sero
vars recognized in 1994 by the WHO Collaborating Centre for Reference
and Research on Salmonella: 11 were assigned to S, enterica subsp. ent
erica, 6 to subspecies salamae, 6 to subspecies diarizonae and 1 to su
bspecies houtenae. In addition, the antigenic factor H:z(83) is descri
bed.