Table 3

Number (%) of positive pigs by nested PCR.

Age of pigs

Treatment group

A

B

C

D

E

F


D7

0/14

0/14

0/14

0/14

0/14

0/14


D28

0/11

0/12

0/9

0/11

0/11

0/7

D56

0/11

0/12

0/8

0/11

0/11

0/7

D70

6/10a,b

6/11a,b

7/7a

8/10a

7/10a

0/7

D84

7/10

7/11

3/5

5/10

7/10

0/7

D84 (BALF)

10/10

10/10

5/5

10/10

10/10

0/7


Legend: nested PCR was carried on nasal swabs (D7, D28, D56, D70, D84) and bronchoalveolar lavage fluid (BALF) (D84) throughout the trial (Groups A-E: n = 14 pigs per group; group F: n = 8 pigs)

Group A (F7.2C), B (F20.1L), C (B2V1W20 1A-F), D (J strain), E (positive control; non-vaccinated, challenge infected), F (negative control; non-vaccinated, non-challenged).

Within a row, different superscript letters correspond to significant differences between the groups (P < 0.05). Group F was not included in the statistical analysis.

Villarreal et al. BMC Veterinary Research 2012 8:2   doi:10.1186/1746-6148-8-2

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