Table I.
Classification and Characteristics of Porcine Enteropathogenic Viruses
| Discovery |
Intestinal replication site |
|||||
|---|---|---|---|---|---|---|
| Family/virus | Size (nm) | Nucleic acid | Year | Investigator | Villous | Crypt |
| Enveloped | ||||||
| Coronaviridae/ transmissible gastroenteritis virus (TGEV) | 60–220 | ssRNA | 1946 | Doyle and Hutchings (Solf and Wesley, 1992) | + | – |
| Nonenveloped | ||||||
| Reoviridae/rotavirus (group A) | 55–70 | dsRNA | 1976 | Woode et al. | + | – |
| Rotavirus (Group B) | 55–70 | dsRNA | 1980 | Bridger | + | – |
| Rotavirus (Group C) | 55–70 | dsRNA | 1980 | Saif et al. | + | – |
| Rotavirus (Group E) | 55–70 | dsRNA | 1986 | Chasey et al. | ? | ? |
| Caliciviridae/calicivirus | 30–40 | ssRNA | 1980 | Bridger | + | – |
| 1980 | Saif et al. | |||||
| Astroviridae/Astrovirus | 28–30 | ssRNA | 1980 | Bridger | + | – |
| 1980 | Saif et al. | |||||
| Adenoviridae/Adenovirus | 70–90 | DNA | 1981 | Coussement et al. | + | ± |