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Table 3 Mortality and bacterial load in the chickens post-challenge

From: Oral immunization with a novel attenuated Salmonella Gallinarum encoding infectious bronchitis virus spike protein induces protective immune responses against fowl typhoid and infectious bronchitis in chickens

Groupsa

Challengeb

Mortalityc

Liverd

Spleend

PBS

8/10

2/2*

2/2*

JOL2068

1/10

3/9

2/9

JOL2077

1/10

5/9

1/9

  1. a7 day old chickens (n = 10) were orally immunized with PBS, JOL2068 or JOL2077.
  2. bChallenge was performed with a lethal wild-type SG strain (1.6 × 106 CFU) after 28 days post-vaccination.
  3. cNumber of dead birds upon challenge.
  4. dNumber of birds positive for SG. *p < 0.05.