The porcine reproductive and respiratory syndrome (PRRS) is a new viral disease in swine. designated exclusively under the acronym PRRS by the European Commission in 1991. The cause of this disease was isolated and determined in 1991 at the Lelystad Institute in The Netherlands as Lelystad aretrivirus. The PRRSV is an RNA virus of the order Nidovirales. https://fitnessgravesyardes.shop/product-category/top-left-shroud/