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Table 4 Results of viral shedding after the challenge Results showed that birds vaccinated with 0.5 ml of vaccine at 12 dpi can be completely protected from GRV. While vaccinating with 0.2 ml and 0.5 ml of vaccine can also provide complete protection

From: Preparation and evaluation of goose reovirus inactivated vaccine

Challenge time (dpv)

Group

Virus isolation from the swabs collected on different days after challenge: positive/total

Survival rate

Protection rate

OD value

Day 3

Day 7

Day 12

Oropharyngeal

Cloacal

Oropharyngeal

Cloacal

Oropharyngeal

Cloacal

7

0.2 mL

1/5

1/5

0/4a

0/4a

0/4a

1/4a

80%

60%

OD 0.45

0.5 mL

0/5

0/5

0/5

0/5

0/5

1/5

100%

80%

OD 0.47

Control

0/5

5/5

0/3a

3/3a

0/1a

1/1a

20%

0%

OD 0.34

12

0.2 mL

0/5

1/5

0/4a

0/4a

0/4a

0/4a

80%

80%

OD 0.57

0.5 mL

0/5

0/5

0/5

0/5

0/5

0/5

100%

100%

OD 0.60

Control

0/5

5/5

0/2a

1/2 a

0/2a

1/2 a

40%

20%

OD 0.29

27

0.2 mL

0/5

0/5

0/5

0/5

0/5

0/5

100%

100%

OD 0.82

0.5 mL

0/5

0/5

0/5

0/5

0/5

0/5

100%

100%

OD 0.96

Control

0/5

4/5

0/3a

0/3 a

0/3a

0/3 a

60%

60%

OD 0.30

  1. a The sample number was less than 5 because geese had died. Complete protection: no viral shedding and death in the group; partial protection: viral shedding or/and death in the group