One rare Ebola strain has no approved vaccine

The fight against Ebola is often framed as a single battle, but the virus exists in several distinct varieties that require different medical tools. While the world has successfully deployed vaccines against common strains, the rare Bundibugyo variety remains a significant challenge for global health authorities. This specific strain drives outbreaks in the Democratic Republic of the Congo and Uganda, where health workers are forced to rely on isolation and contact tracing because no approved vaccine or treatment exists for it.