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Table 2 Characteristics of the seven outbreaks by E. coli in a broiler production unit.

From: Recurring outbreaks by the same Escherichia coli ST10 clone in a broiler unit during 18 months

Outbreak Date Age (days) Pathology Chicken isolation site No. of isolates Antimicrobial treatment
1 Aug. 2017 5 Peritonitis Liver 1 Florfenicol
2 Oct. 2017 14 Septicemia Liver 5 Doxycycline
3 Dec. 2017 6 Septicemia Liver 1 Doxycycline
4 Feb. 2018 18 Septicemia Liver 5 Sulfa/trimethoprim
5 Jun. 2018 18 Septicemia Liver 17 Doxycycline
6 Oct. 2018 18 Septicemia Pericardium/hip joint/peritoneum 6 None
7 Nov. 2018 21 Septicemia Liver (rat intestine) 2 None
Total 37  
  1. A total of 37 bacterial isolates (36 from chickens and 1 from a rat).