BLANTYRE, MALAWI — Malawi’s government launched a plan Thursday to stop cholera outbreaks by 2030. Officials say that if the government and international partners can effectively cooperate, they can greatly reduce the prevalence of cholera in the southern African country, where it has killed at least 1,700 people over the past three years. Partners include the World Health Organization, or WHO, and UNICEF. Minister of Health Khumbize Kandodo-Chiponda said, “The goal of the plan is to reduce the annual cholera rate by 90% and achieve the case fatality rate of less than 1% by the year 2030, as recommended by