title: Correlation of conversion of Salmonella enterica serovar enteritidis phage type 1, 4, or 6 to phage type 7 with loss of lipopolysaccharide.
abstract: Studies of pairs of Salmonella enterica serovar Enteritidis isolates from different poultry flocks showed that phage type (PT) 7 may be derived from PT 1, 4, and 6. The conversion appeared to be associated with loss of lipopolysaccharide. It is concluded that PT 7 may be of little value as an epidemiological marker of S. enterica serovar Enteritidis.
authors.affiliation: Danish Veterinary Laboratory, Copenhagen V, Denmark. dlb@svs.dk
authors.forename: D L
authors.initials: DL
authors.lastname: Baggesen
authors.forename: H C
authors.initials: HC
authors.lastname: Wegener
authors.forename: M
authors.initials: M
authors.lastname: Madsen
mesh_terms: D006801:Humans; D008070:Lipopolysaccharides; D012477:Salmonella enteritidis / Q000145:classification / Q000235:genetics*
chemical_list: D008070:Lipopolysaccharides