Replication of an enteric bovine coronavirus in intestinal organ cultures

Coronavirus in Gnotobiotic Calves Coronavirus and a Virulent Bovine Enteric Cross-Protection against a Human Enteric

Cross-protection against a human enteric coronavirus and a virulent bovine enteric coronavirus in gnotobiotic calves.

A group 2 human coronavirus designated HECV-4408 was isolated from a child with acute diarrhea and is antigenically and genetically more closely related to bovine coronavirus (BCoV) than to human coronavirus OC43 (X. M. Zhang, W. Herbst, K. G. Kousoulas, and J. Storz, J. Med. Virol. 44:152-161, 1994). To determine whether HECV-4408 infects gnotobiotic calves and induces cross-protective immunit...

Intestinal microbiota promote enteric virus replication and systemic pathogenesis.

Intestinal bacteria aid host health and limit bacterial pathogen colonization. However, the influence of bacteria on enteric viruses is largely unknown. We depleted the intestinal microbiota of mice with antibiotics before inoculation with poliovirus, an enteric virus. Antibiotic-treated mice were less susceptible to poliovirus disease and supported minimal viral replication in the intestine. E...

Intestinal Microbiota Promote Enteric Virus Replication and Systemic

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Phylogenetic investigation of enteric bovine coronavirus in Ireland reveals partitioning between European and global strains

BACKGROUND Bovine coronavirus is a primary cause of neonatal calf diarrhea worldwide, and is also associated with acute diarrhea in adult cattle during the winter season. There are no reports on molecular characterization of bovine coronavirus in Ireland, and little data exists apart from serological studies. FINDINGS In this study, 11 neonatal (mean age 9 days) calf BCoV strains from the sou...