| Isolate | Country | Source | Provided by |
|---|---|---|---|
| Cow611A * | Japan | I. ovatus | E. Isogai |
| Cow611C * | Japan | I. ovatus | E. Isogai |
| F63B * | Japan | I. ovatus | E. Isogai |
| HO14 * | Japan | I. ovatus | T. Masuzawa |
| IKA2 * | Japan | I. ovatus | R. C. Johnson |
| O612 * | Japan | I. ovatus | E. Isogai |
| Sika 4 * | Japan | I. ovatus | E. Isogai |
| Sika 5 * | Japan | I. ovatus | E. Isogai |