Epidemig Ebola Gorllewin Affrica, 2013-16: Gwahaniaeth rhwng fersiynau

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[[Delwedd:2014 West Africa Ebola virus outbreak situation map.jpg|bawd|Map o sefyllfa'r epidemig yng Ngini, Liberia a Sierra Leone ar 14 Awst 2014.<ref>{{cite web|url=http://www.cdc.gov/vhf/ebola/resources/distribution-map-guinea-outbreak.html |title=2014 Ebola Outbreak in West Africa - Outbreak Distribution Map &#124; Ebola Hemorrhagic Fever &#124; CDC |publisher=Cdc.gov |date=14 Awst 2014 |accessdate=20 Awst 2014}}</ref>]]

Dechreuodd [[epidemig]] o [[clefyd y firws Ebola|glefyd y firws Ebola]] yng [[Gini|Ngini]] yn Rhagfyr 2013, ond ni chafodd yr epidemig ei ganfod tan Mawrth 2014,<ref name="CRM2014">{{cite news |url=http://www.dddmag.com/news/2014/07/ebola-crisis-triggers-health-emergency |title=''Ebola Crisis Triggers Health Emergency'' | work= Drug Discov. Dev. |date=31 Gorffennaf 2014 | publisher =[[Cahners Business Information]] |location = Highlands Ranch, [[Colorado|CO]], [[Unol Daleithiau America]] |agency=Associated Press | accessdate = 3 Awst 2014 | last = Roy-Macaulay | first = Clarence}}</ref> ac yn hwyrach ymledodd i [[Liberia]], [[Sierra Leone]], [[Nigeria]] a [[Senegal]]. Achoswyd yr epidemig gan y [[firws Ebola]] (''Zaire ebolavirus''). Hwn yw'r tarddiant mwyaf difrifol o Ebola yn nhermau'r nifer o achosion a marwolaethau ers darganfyddiad y firws ym 1976,<ref>{{cite web |url= http://www.cdc.gov/vhf/ebola/resources/outbreak-table.html |title=Chronology of Ebola Hemorrhagic Fever Outbreaks | publisher = Centers for Disease Control and Prevention |date=24 Mehefin 2014 | accessdate =25 Mehefin 2014}}</ref> ac mae'r nifer o achosion o'r epidemig presennol yn fwy na'r achosion o'r holl epidemigau cynt gyda'i gilydd.<ref>http://www.nejm.org/doi/full/10.1056/NEJMp1409903?query=featured_home& New England Journal of Medicine; Cyhoeddwyd 20 Awst n2014; adalwyd 31 awst 2014</ref> Ni chredir bod tarddiant arall o'r clefyd yng [[Gweriniaeth Ddemocrataidd y Congo|Ngweriniaeth Ddemocrataidd y Congo]], a laddodd 13 o bobl erbyn 26 Awst 2014, yn gysylltiedig â'r epidemig yng Ngorllewin Affrica.<ref name=WHO-ebola-rpt>{{cite news |url=http://www.afro.who.int/en/clusters-a-programmes/dpc/epidemic-a-pandemic-alert-and-response/outbreak-news/4263-ebola-virus-disease-drc.html |work=Epidemic & Pandemic Alert and Response (EPR) - Outbreak News |title=Ebola virus disease – Democratic Republic of Congo |publisher=WHO |accessdate=27 Awst 2014}}</ref>