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Table 2 E. coli isolates and pathological findings in reproductive tract

From: High genetic diversity among extraintestinal Escherichia coli isolates in pullets and layers revealed by a longitudinal study

Farm/flock Isolate identificationa Age (weeks) Reproductive lesions Serotype PFGE type
Rearing farm 1
 RI RI-1 18 no ntb LA23
RI-2 no nt nt
RI-3 no nt LA20
RI-4 no nt LA19
 L1/I-A L1/I-A-1 42 no nt S31
L1/I-A-2 no nt S37
L1/I-A-5 no O78:K80 S6
 L2/I-A L2/I-A-1 42 no O1:K1 S2
L2/I-A-5 no O1:K1 S15
 L2/I-B L2/I-B-4 77 oophoritis nt S22
L2/I-B-5 oophoritis nt S23
 L3/I-B L3/I-B-1 77 oophoritis and salpingitis O2:K1 S19
L3/I-B-2 oophoritis O2:K1 S19
Rearing farm 2
 RII RII-1 19 no O1:K1,O2:K1,O78:K80 Sa3
RII-2 no O1:K1,O2:K1, Sa1
RII-3 no nt Sa4
RII-4 no O1:K1 Sa5
RII-5 no nt Sa2
 L1/II-A L1/II-A-1 40 no O1:K1 nt
L1/II-A-2 no O1:K1 nt
L1/II-A-3 no O1:K1 nt
L1/II-A-4 no O1:K1 nt
L1/II-A-5 no O1:K1 nt
 L2/II-A L2/II-A-1 38 degeneration of oviduct O1:K1,O2:K1, nt
L2/II-A-2 no O1:K1,O2:K1, LA10
L2/II-A-3 oophoritis O2:K1 LA6
L2/II-A-4 oophoritis O1:K1,O2:K1,O78:K80 LA9
L2/II-A-5 oophoritis O1:K1,O2:K1, LA2
 L1/II-B L1/II-B-1 80 egg peritonitis nt Ca4
L1/II-B-2 no O2:K1 Ca2
L1/II-B-3 egg peritonitis nt Ca3
L1/II-B-4 egg peritonitis nt Ca5
L1/II-B-5 egg peritonitis nt Ca1
 L2/II-B L2/II-B-1 68 oophoritis nt LA17
L2/II-B-2 oophoritis nt LA18
L2/II-B-3 oophoritis nt LA18
L2/II-B-4 oophoritis nt LA7
L2/II-B-5 oophoritis nt LA18
Rearing farm 3
 RIII RIII-1 18 no nt S16
RIII-2 no nt S5
RIII-3 no nt S5
RIII-4 no O1:K1,O2:K1, S4
 L1/III-A L1/III-A-1 39 oophoritis nt B15
L1/III-A-3 no O1:K1 B14
L1/III-A-5 oophoritis nt B3
 L2/III-A L2/III-A-1 39 no nt B4
L2/III-A-2 no O1:K1 B6
L2/III-A-3 no nt B4
L2/III-A-4 no nt B8
L2/III-A-5 no nt B8
 L3/III-A L3/III-A-1 39 oophoritis nt B1
L3/III-A-2 oophoritis nt B1
L3/III-A-3 oophoritis nt B1
L3/III-A-4 oophoritis nt B1
L3/III-A-5 oophoritis nt B17
 L1/III-B L1/III-B-2-ovary1 67 egg peritonitis O1:K1 B13
L1/III-B-2-ovary2 egg peritonitis nt B12
L1/III-B-3-ovary no O1:K1 B12
L1/III-B-3-oviduct no nt B12
L1/III-B-4-oviduct1 no nt B5
L1/III-B-4-oviduct2 no nt B11
L1/III-B-5 degeneration of ovary and oviduct nt B10
 L2/III-B L2/III-B-1 67 no O1:K1 B7
L2/III-B-2 egg peritonitis O1:K1 B7
L2/III-B-3 degeneration of ovary and oviduct O1:K1 B9
L2/III-B-4 egg peritonitis O1:K1 B9
 L3/III-B L3/III-B-3 67 no O1:K1 B16
L3/III-B-4 oophoritis O1:K1 B2
L3/III-B-5 no O1:K1 nt
Rearing farm 4
 RIV RIV-1 17 no nt Ua2
RIV-2 no nt Ua1
RIV-3 no nt Ua1
RIV-4 no nt Ua3
RIV-5 no nt Ua4
 L1/IV-A L1/IV-A-1 41 no nt LA16
L1/IV-A-2 no nt LA15
L1/IV-A-3 no nt LA15
L1/IV-A-4 no nt LA27
 L2/IV-A L2/IV-A-2 41 no O1:K1 LA13
 L3/IV-A L3/IV-A-1 41 degeneration of ovary and oviduct nt LA21
L3/IV-A-2 egg peritonitis nt LA21
L3/IV-A-3 degeneration of ovary and oviduct nt LA11
L3/IV-A-4 degeneration of ovary and oviduct nt LA11
L3/IV-A-5 no nt LA4
 L1/IV-B L1/IV-B-1 73 degeneration of ovary and oviduct nt LA25
L1/IV-B-2 oophoritis nt LA1
L1/IV-B-3 oophoritis nt nt
L1/IV-B-4 oophoritis nt LA5
L1/IV-B-5 oophoritis nt LA25
 L2/IV-B L2/IV-B-1-ovary 73 oophoritis nt LA25
L2/IV-B-1-liver oophoritis O1:K1 LA25
L2/IV-B-2 oophoritis O1:K1 LA25
L2/IV-B-3 oophoritis O1:K1 LA26
L2/IV-B-4 oophoritis O1:K1 LA25
L2/IV-B-5 oophoritis nt LA28
 L3/IV-B L3/IV-B-1 73 oophoritis O1:K1 LA3
L3/IV-B-2 oophoritis O1:K1 LA14
L3/IV-B-3 oophoritis O1:K1 LA25
L3/IV-B-4 oophoritis nt LA8
L3/IV-B-5 oophoritis O1:K1 LA25
 L2/IV-Z1 L2/IV-Z1-1 31 oophoritis O1:K1,O2:K1,O78:K80 LA22
  L2/IV-Z1-2   no O1:K1,O2:K1,O78:K80 LA22
  L2/IV-Z1-3   egg peritonitis O1:K1,O2:K1,O78:K80 LA22
 L3/IV-Z1 L3/IV-Z1-2 30 degeneration of ovary and oviduct O1:K1,O2:K1, LA24
 L3/IV-Z2 L3/IV-Z2-1 33 no nt LA12
Rearing farm 5
 RV RV-3 16 no O1:K1,O2:K1, nt
RV-4 no O1:K1 S7
RV-5 no O1:K1 S7
 L1/V-A L1/V-A-2 37 no O1:K1 nt
L1/V-A-3-oviduct no nt S1
L1/V-A-4-oviduct egg peritonitis nt S18
L1/V-A-4-ovary egg peritonitis O1:K1 S7
L1/V-A-6 egg peritonitis O1:K1 nt
 L1/V-B L1/V-B-1 64 egg peritonitis O2:K1 S8
L1/V-B-2 egg peritonitis O2:K1 S9
L1/V-B-3 egg peritonitis nt S25
L1/V-B-5 egg peritonitis O2:K1 S9
 L2/V-A L2/V-A-3 39 degeneration of ovary nt S27
L2/V-A-4 degeneration of ovary O78:K80 S29
L2/V-A-5 no nt S3
 L2/V-B L2/V-B-1 74 no O1:K1 S10
L2/V-B-2 no O1:K1 S10
L2/V-B-3 oophoritis and salpingitis O1:K1 S10
L2/V-B-4 oophoritis nt S20
L2/V-B-5-ovary egg peritonitis O1:K1 S34
L2/V-B-5-heart egg peritonitis O1:K1 S34
Rearing farm 6
 L1/VI-A L1/VI-A-1 38 no nt S36
L1/VI-A-2 no nt S21
L1/VI-A-4 oophoritis nt S11
L1/VI-A-5 no nt S21
 L1/VI-B L1/VI-B-1-ovary 80 degeneration of ovary and oviduct O1:K1 S33
L1/VI-B-1-oviduct degeneration of ovary and oviduct nt S12
L1/VI-B-2 degeneration of ovary and oviduct O1:K1 S33
L1/VI-B-3 oophoritis O1:K1 S26
L1/VI-B-4 degeneration of ovary and oviduct nt S24
L1/VI-B-5 egg peritonitis O1:K1 S35
 L2/VI-A L2/VI-A-1 38 no nt S17
L2/VI-A-2 no nt S13
L2/VI-A-4 oophoritis nt S32
L2/VI-A-5 oophoritis, degeneration of oviduct nt S17
 L2/VI-B L2/VI-B-2-ovary 80 oophoritis nt S28
L2/VI-B-2-oviduct oophoritis O1:K1 S30
L2/VI-B-4 degeneration of ovary nt S14
L2/VI-B-5 egg peritonitis O1:K1 S32
  1. Age of birds, lesions in the reproductive tract, serotypes and PFGE types of each E. coli isolates are provided in the corresponding vertical line
  2. aisolates identification: isolates from rearing farms are marked with letter “R” along with farm number and bird number. Likewise, isolates from layer flocks are labelled with letter “L” along with flock number/corresponding rearing farm number – time of sampling (A: peak of production, B: end of production, Z1 or Z2: first or second additional samplings) – bird number – organs (only in those birds from where two samples were collected)
  3. bnon-typeable