Since January, 18 126 cases of cholera with 317 deaths have been reported in South West State of Somalia.
Since the start of the year, 25,424 infected people have been identified.
Somalia is starting a major effort to vaccinate 450,000 people against cholera.
In response to the outbreak, authorities have shut down three primary schools and all fishing camps along the Luapula River.
Malawi has reported new cases of cholera in areas bordering Mozambique.
The vaccination campaign is targeting 450000 people.
Mozambique is fighting a cholera outbreak, in four provinces, that has infected 1,222 people and killed two.
Due to drought, some communities have had to resorted to unsafe water sources.
Two areas in the Central Visayas have reported almost 200 cases of cholera.
Tanzania has challenges with epidemic control, and cholera outbreaks have been reported in most neighboring countries.