Risk factors for infection of sow herds with porcine reproductive and respiratory syndrome (PRRS) virus.

@article{Mortensen2002RiskFF,
  title={Risk factors for infection of sow herds with porcine reproductive and respiratory syndrome (PRRS) virus.},
  author={Sten Mortensen and Henrik Stryhn and Rikke S\ogaard and Anette Boklund and Katharina Dc St{\"a}rk and Jette Christensen and Preben William Willeberg},
  journal={Preventive veterinary medicine},
  year={2002},
  volume={53 1-2},
  pages={83-101}
}
In 1992, the porcine reproductive and respiratory syndrome virus (PRRSV) of European type (PRRSV-EU) was introduced in Denmark. By 1996, the virus had spread to approximately 25% of the Danish herds. In January 1996, a modified-live vaccine based on the American type of the virus (PRRSV-US) was used in replacement boars for Danish artificial insemination (AI) centres and from July 1996, the vaccine was used in PRRSV-EU infected herds for prevention of disease. Soon after vaccine introduction… CONTINUE READING

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