title: Letter: Equine virus abortion.
mesh_terms: D000034:Abortion, Veterinary / Q000517:prevention & control*; D000818:Animals; D005260:Female; D006564:Herpesviridae; D006566:Herpesviridae Infections / Q000517:prevention & control / Q000662:veterinary; D004861:Herpesvirus 1, Equid; D006734:Horse Diseases / Q000517:prevention & control*; D006736:Horses; D011247:Pregnancy