Fowl typhoid live lyophilized vaccine applied at 3-month intervals protected layer chickens from Salmonella gallinarum infection and prevented cloacal shedding. J. Adv. Vet. Anim. Res. 2022;9(2):301-309. Accessed July 3, 2026. https://www.banglajol.info/index.php/JAVAR/article/view/80157