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Table 3 The prevalence of recovered bacterial pathogens from pneumonic and apparently healthy calves

From: Prevalence, the antibiogram and the frequency of virulence genes of the most predominant bacterial pathogens incriminated in calf pneumonia

IsolatesSource of sampleNo. of isolates (%)p-value
Pneumonic calves (n = 170)
 E. coliNS40 (23.5)0.000118*
 P. vulgarisNS21 (12.4) 
 S. aureusNS20 (11.8) 
 P. aeruginosaNS10 (5.9) 
 E. cloacaeNS7 (4.1) 
 P. multocidaLT3 (1.8) 
 E. aerogenesNS7 (4.1) 
 M. haemolyticaBS1 (0.6) 
 Total 109 (64.1) 
Apparently healthy calves (n = 55) 
 E. coliNS9 (16.4) 
 S. aureusNS6 (10.9) 
 P. vulgarisNS3 (5.4) 
 E. aerogenesNS1 (1.8) 
 Total 19 (34.5) 
  1. NS nasal swab, LT lung tissue, BS blood sample
  2. *The result is significant at p < .05