Volume 20, Number 5—May 2014
Role of Transportation in Spread of Porcine Epidemic Diarrhea Virus Infection, United States
|PCR status after unloading
||PCR test status before unloading
|Positive||25 (4.3)||28 (4.9)||53 (9.2)|
|Total||38 (6.6)||537 (93.4)||575|
*Values represent the number of trailers (% total) in each group. Samples were gathered from 6 pig harvest facilities.
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