PubMed · 4693383
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W H Beaumont. 1973-01-27. Additives in feed and the E.E.C.. https://doi.org/10.1136/vr.92.4.103-a
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OBJECTIVE: To determine the survival of porcine reproductive and respiratory syndrome virus (PRRSV) on nonliving substances (fomites) at 25 to 27 C. DESIGN: Prospective controlled study. SAMPLE POPULATION: 3 solid, 6 porous, and 7 liquid fomites. PROCEDURE: The fomites were contaminated with known concentrations of PRRSV. Samples for virus isolation were obtained on day 0 through day 11, assayed in cell cultures, and stained with fluorescent antibody conjugate. RESULTS: The virus was recovered only on day-0 samples of alfalfa, wood shavings, straw, plastic, boot rubber, and stainless steel. Virus was isolated from city water through day 11, from well water through day 9, and from 2 buffer solutions for 4 and 6 days. The virus was isolated only on day 0 from swine saliva, urine, and fecal slurry. CLINICAL IMPLICATIONS: Results indicated that PRRSV is a fairly labile virus, but because of its duration of viability in water, contamination of drinking water and lagoons by PRRSV-shedding swine would serve as sources of virus to infect susceptible swine.