title: Letter: Efficacy of modified live-virus equine rhinopneumonitis vaccine.
mesh_terms: D000818:Animals; D005260:Female; D006564:Herpesviridae / Q000276:immunology*; D006566:Herpesviridae Infections / Q000517:prevention & control / Q000662:veterinary; D004861:Herpesvirus 1, Equid / Q000276:immunology*; D006734:Horse Diseases / Q000517:prevention & control*; D006736:Horses; D008297:Male; D011247:Pregnancy; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines