Table 1 Overview of the characteristics of the two case herds
From: Clinical problems due to encephalomyocarditis virus infections in two pig herds
Herd A | Herd B | |
|---|---|---|
Clinical signs | Acute mortality, shivering | Acute mortality, severe dyspnea |
preceding death | prior to death | |
Affected production stage | Farrowing unit | Nursery unit |
Age of affected pigs | 3–12 days | 8–10 weeks |
Mortality rate in affected production stage (%) | 22 | 30–40 |
Clinical signs in sows | None | None |
Duration of problems | 8 months | 5 weeks |