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seroprevalence of antibodies against encephalomyocarditis virus in swine of iowa.a total of 2,614 swine from 104 herds located throughout iowa were tested for antibodies against encephalomyocarditis virus (emcv) by use of the microtitration serum neutralization test. the sample was composed of 587 sows and gilts and 2,027 finishing swine. a statistically significant (p less than 0.002) difference was observed between prevalence in sows and gilts (17.2%) and that in finishing swine (12.2%). breeding swine maintained in total confinement (20.5%) had significantly (p = 0.04) hi ...19911667528
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