Isolates | Calves | Adult cattle | Total | Chi-Square P-Value | ||
---|---|---|---|---|---|---|
Nasopharyngeal swab (n = 125) | Pneumonic lung (n = 45) | Nasopharyngeal swab (n = 75) | Pneumonic lung (n = 155) | |||
M. haemolytica | 68 (61.26) | 18 (40.0) | 35 (49.30) | 70 (46.98) | 191 (50.80) | .125* |
P. multocida | 21 (18.92) | 10 (22.22) | 13 (18.31) | 37 (24.83) | 81 (21.54) | |
B. trehalosi | 14 (12.61) | 8 (17.78) | 11 (15.49) | 15 (10.07) | 48 (12.77) | |
H. somni | 8 (7.21) | 9 (20.0) | 12 (16.90) | 27 (18.12) | 56 (14.89) | |
Total | 111 (88.8) | 45 (100) | 71 (94.67) | 149 (96.13) | 376 (94.0) |