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| Latvian | English |
| Rietumnīlas drudzis | West Nile encephalitis |
| Rifta ielejas drudzis | Rift valley disease (hepatitis enzootica) |
| Rifta ielejas drudzis | Rift Valley fever (hepatitis enzootica) |
| Rifta ielejas drudzis | enzootic hepatitis (hepatitis enzootica) |
| Čikuguni drudža vīruss | Chikungunya virus |