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. 2022 Feb 18;53:12. doi: 10.1186/s13567-022-01029-w

Table 1.

Experimental design for study A—homologous vs heterologous protection to a PCV2a Vvaccine

Treatment (T) Vaccine or Control n Vaccination Challenge Necropsy
Strain
T01 Saline Control 10

Study Day 0 a

2 mL intramuscular in right neck

Study Day 21

2 mL intra-muscular in left neck

2 mL intranasal (1 mL each nare)

PCV2a Study Day 42
T02 cPCV2a 10
T03 Saline Control 10 PCV2b
T04 cPCV2a 10

a Day of study. Pigs were 20–22 days of age on Study Day 0 which corresponded to the day of vaccination.