An oral cholera vaccination (OCV) campaign was launched to protect at-risk populations in cholera-affected woredas (districts) across eight regions: Afar, Amhara, Oromia, Central Ethiopia, South Ethiopia, Sidma and Somali. Covering 89 woredas, including Internally Displaced People (IDPs) and refugee camps (Sudan), the campaign achieved 98.4% coverage, vaccinating over 10,196,575 people.