1. Collins JK, Riegel CA, Olson JD, Fountain A (1987) Shedding of enteric coronavirus in adult cattle. Am J Vet Res 48: 361–365
2. Crouch CF, Bielefeldt OH, Watts TC, Babiuk LA (1985) Chronic shedding of bovine enteric coronavirus antigen-antibody complexes by clinically normal cows. J Gen Virol 66: 1489–1500
3. DeLeeuw PW, Tiessink JWA (1985) Laboratory experiments on oral vaccination of calves against rotavirus or coronavirus induced diarrhea. Zentralbl Veterinarmed [B] 32: 55–64
4. Kapil S, Trent AM, Goyal SM (1989) Intestinal immune responses of newborn calves to bovine enteric coronavirus infection. In: 70th Annual Meeting Conf Research Workers Animal Disease. Chicago, Illinois, abstract no 73: 15
5. Kapil S, Pomeroy K, Goyal SM, Trent AM (1990) Coronavirus infection in calves: respiratory tract involvement. In: 31st Annual Meeting North Central Vet Lab Diagnosticians. Fargo, North Dakota, abstract no 2: 2