ENTERIC CORONAVIRUS-LIKE PARTICLES IN SHEEP

Ribonucleoprotein-like structures from coronavirus particles.

The structure of the ribonucleoprotein (RNP) complex of three coronaviruses was investigated. A single-stranded helix of diam. 14 to 16 nm and up to 320 nm in length was released from disrupted particles of human coronavirus strain 229E and mouse hepatitis virus strain 3 after incubation in mild conditions. The helical complexes appeared to be composed of globular subunits with long axes of 5 t...

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...

Enteric Coronavirus in Ferrets, the Netherlands

To the Editor: Coronaviruses (CoVs) are enveloped, positive-sense, single-stranded RNA viruses that can cause acute and chronic respiratory, enteric, and central nervous system disease in a variety of animal species (1). Recently, a novel ferret enteric CoV (FRECV) was indentifi ed in domesticated ferrets (Mustela putorius) in which epizootic catarrhal enteritis had been diagnosed; the illness ...

Pathogenesis of feline enteric coronavirus infection.

Fifty-one specific pathogen-free (SPF) cats 10 weeks to 13 years of age were infected with a cat-to-cat fecal-oral passed strain of feline enteric coronavirus (FECV). Clinical signs ranged from unapparent to a mild and self-limiting diarrhea. Twenty-nine of these cats were FECV naïve before infection and followed sequentially for fecal virus shedding and antibody responses over a period of 8-48...