DRC records 600 Ebola cases

The World Health Organization said on May 20 that nearly 600 suspected Ebola cases and 139 suspected deaths had been recorded in eastern Democratic Republic of Congo, with confirmed cross-border cases also reported in Uganda. Tedros Adhanom Ghebreyesus, the WHO director-general, told reporters in Geneva that the outbreak involved the Bundibugyo strain, a rarer Ebola virus for which there is no licensed vaccine. WHO has classified the event as high risk nationally and regionally, while assessing the global risk as low. On May 17, the agency also determined that the outbreak met the threshold for a public health emergency of international concern. ### Why are officials focused on the Bundibugyo strain? Bundibugyo virus is the strain driving the outbreak in Congo and Uganda, and current approved Ebola vaccines do not cover it, according to WHO and outside experts. NBC News reported that two candidate vaccines exist, but neither is ready for human testing. The London School of Hygiene & Tropical Medicine said a strain-specific vaccine could potentially reach Phase 1 trials within six to 12 months, depending on the platform used. (news.un.org) The absence of a licensed shot has changed the response on the ground. WHO officials said supportive care remains central, while researchers are moving to assess experimental options for vaccines and treatments. Nature reported this week that treatment trials are in a strong position to be launched quickly in Congo and Uganda. ### How far has the outbreak spread? Ituri Province in eastern Congo remains the center of the outbreak. (nbcnews.com) WHO said two laboratory-confirmed cases, including one death, were reported in Kampala, Uganda, on May 15 and May 16 among people who had traveled from Congo. WHO also said a suspected case in Kinshasa later tested negative on confirmatory testing and is not counted as a confirmed infection. (nature.com) As of May 20, WHO said there were 51 confirmed cases within the larger pool of almost 600 suspected cases in Congo. The London School of Hygiene & Tropical Medicine said the suspected deaths were reported in Ituri, underscoring that the confirmed case count and the broader suspected tally are different measures in the same event. ### Why is WHO saying this is serious but not a global crisis? (who.int) WHO said the outbreak poses high national and regional risk because of ongoing transmission, delayed detection and cross-border movement, but it continues to rate the global risk as low. UN News, summarizing Tedros’s May 20 remarks, said WHO expects the numbers to keep rising because the virus had been circulating before detection. CBS News separately reported that WHO has said the outbreak is not a “pandemic emergency,” even as it meets the legal threshold for an international public health emergency. (lshtm.ac.uk) That distinction matters because WHO’s emergency declaration is a legal and operational tool, not a claim that worldwide spread is underway. The agency’s assessment points to a severe outbreak in central Africa, with international concern because of cross-border transmission, rather than a broad global event. This is an inference drawn from WHO’s published risk assessment and emergency determination. (news.un.org) ### What does this outbreak show about pandemic preparedness? On May 1, WHO member states said they needed more time to finish negotiations on the Pathogen Access and Benefit Sharing annex, a central part of the Pandemic Agreement. WHO said the annex is meant to set rules for sharing pathogens and for access to vaccines, tests and treatments derived from them. Reuters reported the delay cast doubt on when the treaty could come into effect. (who.int) The Ebola outbreak has renewed attention on those talks because vaccine development for Bundibugyo is still at an early stage. Bloomberg reported on May 19 that the Coalition for Epidemic Preparedness Innovations said doctors would probably need to wait many months before a vaccine was ready for human trials. The next formal milestone is the completion of the pathogen-sharing annex, which WHO member states said on May 1 still required additional negotiations before the Pandemic Agreement framework can be finalized. (who.int) (bloomberg.com)