Vaccination group

Vaccination route

Pre-vaccination OD

(mean ± S.E.)

Pre-challenge OD

(mean ± S.E.)

Post-challenge OD

(mean ± S.E.)

TSB

BI

0.011 ± 0.005^a

0.019 ± 0.004^a

0.056 ± 0.018^a*

FKC

BI

0.017 ± 0.010^a

0.022 ± 0.009^a

0.091 ± 0.042^b*

MKC

BI

0.012 ± 0.004^a

0.017 ± 0.011^a

0.061 ± 0.024^a*

TSB

IP

0.011 ± 0.011^a

0.018 ± 0.006^a

0.047 ± 0.025^a*

FKC

IP

0.014 ± 0.006^a

0.128 ± 0.024^b*

0.192 ± 0.044^b*

MKC

IP

0.019 ± 0.004^a

0.112 ± 0.032^b*

0.158 ± 0.062^b*