 Following an outbreak in the eastern city of Goma, Congolese officials say there have been more than 11,000 cases of mpox this year and more than 400 deaths. The National Biomedical Research Institute in Goma says preliminary analysis shows that the virus has been circulating in the area for a long time. Neighboring countries have issued health advisories. The World Health Organization declared a public health emergency in 2022 because of a significant outbreak of mpox. BBC correspondent Richard Kogoy.