Table 2 Risk factors and nasal microbiota members (family level) associated with the presence of virulent strains of G. parasuis (P ≤ 0.05) in 51 piglets in 7 Spanish farms using a multivariable logistic regression model

Production system

Farrow to finish

Ref

Ref

Ref

5.5e−07

Multi-site

19.11

1.98

2.5e−46 to NA

Health status

Control

Ref

Ref

Ref

6.4e−05

Glässer’s disease

2.77

16.03

3.70–113.46

Chitinophagaceae

–

250.9

8.8e+108

1.14e+30 to Inf

0.0102

Enterobacteriaceae

–

−51.7

3.5e−27

1.6e−62 to 1.9e−06

1.75e−05

Corynebacteriaceae

–

898.7

Inf

1.89e+135 to Inf

0.00022

Peptostreptococcaceae

–

−179.1

2.3e−74

1.8e−194 to 1.1e−10

0.017