Skip to main content

Table 1 Mean (±SD) viral load in serum after challenge and percentage of viraemic pigs

From: Immune response development after vaccination of 1-day-old naïve pigs with a Porcine Reproductive and Respiratory Syndrome 1-based modified live virus vaccine

 

Treatment

Day of study

125/DC-1

129/DC + 3

132/DC + 6

134/DC + 8

136/DC + 10

Viral load

% viraemic pigs

Viral load

% viraemic pigs

Viral load

% viraemic pigs

Viral load

% viraemic pigs

Viral load

% viraemic pigs

Mean PRRSV viral load

T01

ND

0%

6.01 ± 0.3

100%

4.72 ± 0.1

100%

4.21 ± 0.3

100%

5.32 ± 0.8

100%

T02

ND

0%

3.57 ± 0.6

62.5%

2.90 ± 0.5

50%

1.80 ± 0.1

12.5%

2.11 ± 0.5

12.5%

T03

ND

0%

4.74 ± 0.7

87.5%

3.80 ± 0.4

87.5%

2.15 ± 0.3

25%

1.86 ± 0.1

25%

 

Contrast

P value

T01 vs T02

  

0.0059

NS

0.0054

NS

0.0016

0.0047

0.0087

0.0047

T01 vs T03

  

NS

NS

0.0458

NS

0.0011

0.0210

0.0096

0.0210

T02 vs T03

  

NS

NS

NS

NS

NS

NS

NS

NS

  1. Values are expressed as log10 PRRSV RNA copies per mL of serum. DC day of challenge, ND non-detectable (below limit of detection of the technique), NS non-significant