Salmonella-Typhimurium phage types from human salmonellosis in denmark 1988 to 1993
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Salmonella-Typhimurium phage types from human salmonellosis in denmark 1988 to 1993. / Wegener, Henrik Caspar; Baggesen, Dorte Lau; Gaarslev, K.
I: Acta Pathologica Microbiologica et Immunologica Scandinavica, Bind 102, Nr. 7, 1994, s. 521-525.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Salmonella-Typhimurium phage types from human salmonellosis in denmark 1988 to 1993
AU - Wegener, Henrik Caspar
AU - Baggesen, Dorte Lau
AU - Gaarslev, K.
PY - 1994
Y1 - 1994
N2 - A total of 989 isolates of Salmonella enterica ssp. enterica serovar Typhimurium from cases of human salmonellosis were investigated by phage typing, The isolates comprised all isolates recovered during the month of August in each of the years from 1988 to 1993. Phage typing assigned 82.6% of the strains to 36 different definitive types, 11.9% of the strains belonged to types of unknown lysis pattern (RDNC), and 5.5% could not be typed by the phages used (NT). Three phage types (12, 66 and 110) made up approximately 50% of the isolates in each of the years investigated. During the period in question these types showed major changes in prevalence: phage type 12 increased from 4.0% in 1988 to a maximum of 55.2% in 1992, and phage type 66 and phage type 110 were reduced from 40.1% and 27.8% to a minimum of 3.9% and 4.8% in 1993 and 1992, respectively. The increasing prevalence of phage type 12 among isolates from human salmonellosis most likely reflects the increasing significance of pork as a source of human salmonellosis. The reduction in phage types 66 and 110 is paralleled by a reduction in S. Typhimurium in Danish poultry. Some phage types were associated with travel, namely 17, 193 and 194. It is concluded that phage typing, although here performed retrospectively, produces valuable epidemiological information regarding changes in the relative importance of different sources of infection in humans. It is suggested that phage typing be performed prospectively on both human and animal S. Typhimurium isolates in Denmark.
AB - A total of 989 isolates of Salmonella enterica ssp. enterica serovar Typhimurium from cases of human salmonellosis were investigated by phage typing, The isolates comprised all isolates recovered during the month of August in each of the years from 1988 to 1993. Phage typing assigned 82.6% of the strains to 36 different definitive types, 11.9% of the strains belonged to types of unknown lysis pattern (RDNC), and 5.5% could not be typed by the phages used (NT). Three phage types (12, 66 and 110) made up approximately 50% of the isolates in each of the years investigated. During the period in question these types showed major changes in prevalence: phage type 12 increased from 4.0% in 1988 to a maximum of 55.2% in 1992, and phage type 66 and phage type 110 were reduced from 40.1% and 27.8% to a minimum of 3.9% and 4.8% in 1993 and 1992, respectively. The increasing prevalence of phage type 12 among isolates from human salmonellosis most likely reflects the increasing significance of pork as a source of human salmonellosis. The reduction in phage types 66 and 110 is paralleled by a reduction in S. Typhimurium in Danish poultry. Some phage types were associated with travel, namely 17, 193 and 194. It is concluded that phage typing, although here performed retrospectively, produces valuable epidemiological information regarding changes in the relative importance of different sources of infection in humans. It is suggested that phage typing be performed prospectively on both human and animal S. Typhimurium isolates in Denmark.
M3 - Journal article
VL - 102
SP - 521
EP - 525
JO - A P M I S. Acta Pathologica, Microbiologica et Immunologica Scandinavica
JF - A P M I S. Acta Pathologica, Microbiologica et Immunologica Scandinavica
SN - 0903-4641
IS - 7
ER -
ID: 172810036