Key result
Seropositive pregnant sows show 0% detectable CSFV in progeny, indicating transplacental transmission is not crucial.
Why the study?
The role of transplacental infection in the perpetuation of classical swine fever virus in wild boar populations was unclear.
Population
34 pregnant wild sows and their unborn progeny from an endemically infected wild boar population
Comparison
Presence versus absence of transplacental CSFV infection
Design
Observational study
Follow-up
2.5 years
Authors
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Questions importance of transplacental CSFV transmission in wild boar; leaves open horizontal or other mechanisms for virus perpetuation.
Observational (n=34)
Kaden et al. (2005) conducted an observational in Classical Swine Fever (n=34). Classical swine fever virus (CSFV) exposure was evaluated on Detection of CSFV or viral RNA in organs derived from animals and their progeny. Among 34 pregnant wild sows, 20 were seropositive but 0% had detectable CSFV or viral RNA in their organs or progeny, indicating transplacental transmission is not crucial for virus perpetuation.
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