Ebola cases in Congo surge past 800 as health workers struggle to track the outbreak, prompting an African Union emergency summit to coordinate a $518 million（約830億円） response.

What happened: Congo's National Institute of Public Health reported 808 confirmed cases and 192 deaths, with Uganda confirming 19 infections. Treatment centers in Ituri province, where more than 90% of Congo's cases have emerged, are becoming overwhelmed, and health officials say contact tracing is falling far short—only 63% of identified contacts were being monitored as of June 14, well below the 95% target.

Why it matters: Surveillance and testing are struggling to keep pace with transmission in a region where conflict and displacement have left almost 1 million people uprooted, and where only one in five people have access to clean water. Aid groups warn the true scale of the outbreak may be far larger than official figures suggest, because many patients arrive at a late stage of disease and were never identified as contacts before seeking care.

What to watch: Burundi President Evariste Ndayishimiye, who chairs the African Union, will host a virtual summit to rally support for the $518 million（約830億円） response plan and coordinate efforts to prevent wider regional spread. Congo and Uganda have already agreed to deploy a mobile laboratory and clinic near their border.