Arteriviridae is a family of viruses known to infect mammals, particularly affecting the respiratory and reproductive systems. These viruses are enveloped and contain a single-stranded RNA genome. They are primarily transmitted through bodily fluids and can lead to various diseases in their hosts. The most notable members of the Arteriviridae family include Equine arteritis virus and Porcine reproductive and respiratory syndrome virus (PRRSV). These viruses can cause significant economic losses in the livestock industry, particularly in swine and equine populations, due to their impact on health and productivity.