Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- initialism Porcine reproductive and respiratory syndrome virus, a virus that causes a disease of pigs, called porcine reproductive and respiratory syndrome (PRRS).
Etymologies
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Examples
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In the present study, PRRSV was isolated from a Belarusian farm with reproductive and respiratory failure and designated 'Lena'.
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East European PRRSV isolates have been found to be of the European genotype but form different sub-types.
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High fever, anorexia and depression were prominent signs in most pigs inoculated with PRRSV
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Analyses revealed that Lena is a new East European sub-type 3 PRRSV isolate.
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Three out of six pigs inoculated with PRRSV (Belgium A) had anorexia and low fever at three, four and five days post-inoculation.
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The replication of PRRSV (Lena) was further studied in depth.
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(Lelystad) and PRRSV (US5), heterologous antibody titres were significantly lower than homologous titres at 14 and 21 days post-inoculation (p = 0. 01-0.03) and at 10 and 14 days post-inoculation (p = 0.04), respectively.
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Lena is a highly pathogenic East European sub-type 3 PRRSV, which differs from European sub-type 1 Lelystad and North American US5 strains at both the genetic and antigenic level, according to Karniychuk and co-authors.
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Heterologous antibody titres were significantly lower than homologous titres (p = 0. 01-0.03) for antisera against PRRSV (Lena) at all sampling time points.
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Obvious clinical and virological differences were observed between the animals inoculated with a recent European sub-type 1 PRRSV isolate (Belgium A) and animals inoculated with PRRSV (Lena).
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