Year Country[note 1] Refn name one group note Virus Human cases Human deaths Description 1976 United Kingdom SUDV or EBOV[note 3] 1 0 Laboratory infection by accidental stick of contaminated needle.[43][44] 1977 Zaire EBOV 1 1 Noted retroactively in the village of Tandala.[44][45][46] 1989–1990 Philippines RESTV 3[note 4] 0 High mortality among crab-eating macaques in a primate facility responsible for exporting animals in the USA.[47] Three workers in the facility developed antibodies but did not get sick.[48] 1989 United States RESTV 0 0 RESTV was introduced into quarantine facilities in Virginia and Pennsylvania by monkeys imported from the Philippines.