The Ebola outbreak in Central Africa may surpass 20,000 cases if infected individuals are not promptly isolated, according to U.S. health officials. The Centers for Disease Control and Prevention (CDC) used computer models to project scenarios ranging from 10,000 to more than 20,000 cases. The worst-case scenario could rival the West Africa epidemic of 2014-2016, which recorded over 28,000 cases and more than 11,000 deaths.
Dr. Satish Pillai, the incident manager for the CDC’s Ebola response, noted that without strong public health measures, an outbreak of similar scale is plausible. Jennifer Nuzzo, from Brown University’s Pandemic Center, highlighted the alarming potential of the outbreak’s trajectory. She warned of the difficulty in accurately predicting outbreak progression due to limited data and advised caution in interpreting the specific numbers.
The Africa Centres for Disease Control and Prevention reported approximately 400 confirmed cases and 63 deaths. However, more cases may exist unreported. Ebola spreads through contact with bodily fluids, and there are currently no dedicated treatments or vaccines for the Bundibugyo virus involved in this outbreak. The disease is often fatal. The World Health Organization declared this situation a global health emergency in May.
The response is further complicated by armed conflict involving the Congo government, M23 rebels, and the Allied Democratic Force, leading to significant displacement of residents. Despite this, Nuzzo stated the U.S. is at low risk. Travel restrictions and health screenings for travelers from affected regions are in place.
CDC modeling considers factors like current infections and isolation success, predicting at least 20,000 cases and 4,000 deaths in three months with an assumption of 50 initial deaths and 20% isolation by late May. Improved isolation rates of 50% to 70% could limit cases to around 10,000. However, if unrecognized deaths are higher, outcomes could be more severe.
Past CDC modeling during the 2014 West Africa outbreak proved inaccurate. They initially projected up to 1.4 million infections under a worst-case scenario, a significant overestimation. The Associated Press Health and Science Department received support for this report from organizations including the Howard Hughes Medical Institute and the Robert Wood Johnson Foundation.