“Heavy rainfall is accelerating the spread of cholera in Sierra Leone and Guinea, where existing health risks such as poor hygiene practices, unsafe water sources and improper waste management are believed to have triggered the disease which has killed 327 people and infected more than 17,400 in both countries since February,” IRIN reports. “Prevalence is high in the congested slum areas in the capitals of Guinea and Sierra Leone, which have few clean toilets, and most people defecate in the open, often dangerously close to open wells, which are the source of water for most residents,” the news service writes (8/31). “Sierra Leone has been hit by its worst outbreak of the water-borne disease in nearly 15 years and cases are expected to peak at around 32,000 in September, the west African nation’s rainiest month, according to the World Health Organization,” Agence France-Presse notes, adding, “Neighboring Guinea has also been hard hit with 104 deaths and some 5,000 cases” (9/3).