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Mice were tested for the presence of mouse norovirus (MNV) and several Helicobacter species before (Pre) and after (Post) cross-fostering.
| Pre | Post | |
|---|---|---|
| MNV | + | - |
| H. bills | - | - |
| H. ganmani | - | - |
| H. hepaticus | - | - |
| H. mastomyrinus | + | - |
| H. rodentium | - | - |
| H. typhlonius | + | - |
