Table 1.

Results of phage typing and DNA fingerprinting (ribotyping, PFGE, plasmid profile) of 104 serotype Enteritidis isolates from eight poultry farms

FarmNo. of isolatesPTRibotype (PS type)PFGE (X type)Plasmid profilebOverall typec
I6PT4PS17X11A 1 a
1PT4PS17X10 2
3PT4PS16X11A3
1PT7PS16X20 4
1NTPS17X11A 5
1PT1PS17X10 6
2PT1PS17X20 7
II10PT4PS2X11A8
3PT4PS1X11A 9
2PT4PS1X20 10
1PT7PS1X11A11
2NT PS5 X11A 12
1NT PS3 X1 2B 13
1NTPS2X1 2B 14
1NT PS3 X1 3D 15
2PT1PS2X11A 16
1PT7PS2X11A17
1PT7PS1 X3 0 18
1 PT24 PS2X1 2F 19
III3PT4PS16X11A3
1PT4PS16X1 2G 20
2PT4PS16X2021
1PT7PS16X11A 22
1 PT8 PS22 X5 1A 23
IV2 PT29 PS12 X1 3A 24
1 PT29 PS8 X2 3A 25
3 PT29 PS8 X1 3A 26
2 PT29 PS10 X1 3A 27
1 PT29 PS13 X1 5A 28
1 PT29 PS13 X1 3A 29
1 PT29 PS8 X1 4A 30
1 PT29 PS11 X6 4A 31
1 PT29 PS12 X1 2E 32
1 PT36 PS9 X1 3A 33
V1 PT21 PS20 X1 3B 34
1 PT21 PS20 X2 3B 35
1 PT21 PS20 X2 2D 36
2 PT21 PS20 X1 2D 37
1 PT21 PS20 X1 3C 38
1 PT35 PS20 X1 2D 39
1 PT35 PS20 X1 2C 40
2 PT6 PS20 X1 2D 41
1 PT6 PS16X1 2D 42
1 PT6 PS20 X2 2D 43
1 PT6 PS20 X1 3C 44
1 PT6 PS21 X1 2D 45
1 PT6 PS17X1 3B 46
1PT4 PS7 X11A 47
VI1PT4 PS19 X11A 48
3PT4PS2X11A8
1PT7PS2X11A17
1PT7 PS4 X20 49
1PT7PS1X11A11
VII1PT4 PS14 X11A 50
2PT4PS16X11A3
6PT4 PS6 X11A 51
VIII5PT4PS16X11A3
1PT4PS16X2021
1PT4PS16 X4 1A 52
1PT4 PS15 X11A 53
1PT4 PS18 X11A 54
  • a Types in boldface type were found only on one farm (specific types).

  • b The numeral in the plasmid profile represents the identification number of the plasmid in the strain.

  • c The overall type assigned to the strains represents a combination of results from the different typing methods.