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Table 1 Pathogens identified from deep pharyngeal and mid-nasal swabs in Holstein calves from California and New Mexico

From: Susceptibility loci revealed for bovine respiratory disease complex in pre-weaned holstein calves

Pathogen

*California n = 2,014

*^New Mexico n = 748

*California & ^New Mexico n = 2,763

+Odds ratio

Odds ratio 95% confidence interval

Odds ratio Pvalue

Arcanobacterium pyogenes

0.3 (0)

10.7 (4.3)

3.1 (1.2)

2.8

1.5-5.3

0.0003

Histophilus somni

1.7 (0.4)

3.2 (0.5)

2.1 (0.4)

4.9

2.0-14.6

<0.0001

Manheimia haemolytica

23.5 (11.1)

4.5 (3.5)

18.4 (9)

2.3

1.8-2.9

<0.0001

Pasteurella multocida

36.3 (23.6)

61.1 (54.8)

43.0 (32)

1.6

1.4-1.9

<0.0001

Mycoplasma spp.

64.6 (57.1)

57.4 (48.7)

62.6 (54.8)

1.4

1.2-1.6

<0.0001

Bovine corona virus

9.6 (7.7)

50.0 (35.0)

19.9 (14.5)

1.5

1.2-1.8

0.0004

Bovine respiratory syncytial virus

20.8 (7.7)

4.9 (2.5)

16.3 (6.3)

2.9

2.2-3.8

<0.0001

Bovine viral diarrhea virus

0 (0)

1.3 (0)

0.4 (0)

NA

NA

NA

Bovine herpes virus

0 (0)

0 (0)

0 (0)

NA

NA

NA

  1. *Percent of cases and controls (in parentheses) where individual pathogens were present in the pre-weaned Holstein calves. Animals classified as undetermined with respect to case–control status were not included in the summary statistics presented here.
  2. ^Jersey calves (n = 18) were removed;
  3. +Odds ratio of being affected with BRDC when the pathogen was present when the animal was swabbed.