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.