| genome | (+) sense, single stranded RNA, 32 kilobases long (the LARGEST RNA virus genome) |
| capsid | long flexible coiled helix, 10 - 20 nanometers in diameter |
| envelope | pleomorphic, but spherical in shape (80 - 160 nanometers) with large, widely spaced club-shaped peplomers |
| is the genome infectious? | Yes |
| genera | coronavirus, torovirus |
| associated illnesses | Acute Febrile Upper Respiratory Disease, coryza, or the Common Cold
(HCV)
gastroenteritis (Torovirus) |
| protein gene | protein function |
| N | Nucleocapsid protein |
| E1 | Integral membrane matrix protein |
| E2 | Club shaped peplomer |
| HE | Hemagglutinin/esterase - in some subgroups |
| RNA-dependent RNA polymerase | |
| Protein kinase |
| Genus Coronavirus | Human Coronavirus (HCV) - main serotypes: strain OC43 (encodes HE),
strain 229E (lacks HE)
Human Enteric Corona Virus (HECV) |
| Genus Torovirus | Toroviruses associated with human diarrhea |