Merck Animal Health offers Bron-Newcavac-SE, a long-lasting vaccine to control Newcastle disease, infectious bronchitis and . Bron-Newcavac-SE is a three-way product that helps ensure their flock, workers and operation are protected and that they are in full compliance with U.S. Food and Drug Administration regulations. In addition to controlling , Bron-Newcavac-SE controls the respiratory pathogens that cause Newcastle disease and infectious bronchitis when administered to chickens 10 weeks of age or older, as well as supports strong flock uniformity.