Africa is experiencing “the worst outbreak of cholera in 25 years,” with a surge of cases in Burundi and Angola, the Africa Centres for Disease Control and Prevention (Africa CDC) announced.

The listeria outbreak tied to prepared pasta meals has widened, with the U.S. Food and Drug Administration (FDA) reporting two additional deaths and seven new illnesses.

More than 6,800 people have died from cholera outbreaks across Africa this year, a sharp rise compared to last year, according to data released Thursday by the Africa Centers for Disease Control and Prevention (Africa CDC).