Parvovirus: When Old Diseases Return: Parvovirus still lurks and can cause havoc in newborn litters

摘要

Parvovirus is one of those "old" diseases that seems to have gone away, right? Well, maybe not. Swine parvovirus causes fetal mortality and mummified fetuses when naive animals are infected during gestation. The virus infects fetal tissue and causes fetal death at most stages of gestation. Typically, parvovirus cases produce mummies of various sizes within litters. A farm that was positive for porcine reproductive and respiratory syndrome (PRRS), and also needed to make a genetic change, decided that a complete depopulation-repopulation was the best way to meet all of their goals.