Persistence of PRRSV in Nursery Pigs

Date
2000-01-01
Authors
Horter, D.
Chang, C.
Pogranichnyy, R.
Yoon, Kyoung-Jin
Zimmerman, Jeffrey
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Abstract

Porcine Reproductive and Respiratory Syndrome virus (PRRS)V is known to cause persistent infections in swine populations. We inoculated three week-old feeder pigs with PRRSV (ATCC VR-2332) then collected and analyzed biological samples to determine the pigs’ infection status over time post-inoculation (PI). Infectious virus was detected in 100% of animals at 63 days post inoculation and 90% of animals were still carrying infectious virus at 105 days PI.

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