theSIGNAL HEALTH
31 May 2026
"The measure of a civilization is how it treats its weakest members."
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Health

Ebola kills up to half of those infected

The WHO has warned that the DRC outbreak carries a death rate of between 30 and 50 percent.

The World Health Organization has confirmed that the Ebola outbreak in the Democratic Republic of the Congo is killing between three and five in every ten people infected, a death rate that officials have described as alarming even by historical standards. The revised estimate, which is based on confirmed cases rather than broader suspected figures, was disclosed by Anaïs Legand of the WHO's high threat pathogens team, who noted that the figures likely understate the true scale of transmission given that the virus is believed to have circulated undetected for some time before the outbreak was formally declared on 15 May. More than 1,000 confirmed and suspected cases have now been recorded, among which at least 233 deaths have been attributed to the disease. One patient is reported to have recovered and been discharged from a health centre on 27 May following two negative tests, marking the first confirmed recovery of the outbreak. It is the 17th recorded Ebola epidemic in the country, where the disease was first identified in 1976 and has averaged a 50 percent fatality rate across all outbreaks. The WHO's director general, Tedros Adhanom Ghebreyesus, arrived in Kinshasa on Thursday and was expected to travel to the outbreak's epicentre in the north-eastern Ituri province, though that visit has been delayed by one day. He appealed directly to armed groups operating in the region to declare a ceasefire, arguing that conflict and displacement were significantly complicating containment efforts. The outbreak is centred on a mineral-rich area over which multiple armed factions, including the Rwanda-backed M23 movement, have been fighting.…

WHO Director General Tedros Adhanom Ghebreyesus speaks to reporters in Kinshasa, DRC.
DRC Ebola outbreak: confirmed and suspected cases and deaths since 15 May 202120222023202420252026
Discuss
  • Why might armed conflict make it significantly harder to contain an Ebola outbreak?
  • What does a 30 to 50 percent death rate suggest about the urgency of international response?
  • How might undercounted cases affect the decisions that health authorities are making?
  • Should travel bans ever be considered a legitimate tool in containing deadly disease outbreaks?
  • What responsibilities do neighbouring countries have when a disease outbreak occurs near their borders?
"
Conflict and displacement make everything harder.
Tedros Adhanom Ghebreyesus, Director General, World Health Organization
World

Gaza's cemeteries erased by Israeli military operations

Satellite imagery updated on Google Earth has revealed that Israeli military operations have destroyed or partially demolished 94 percent of Gaza's cemeteries, according to the Euro-Med Human Rights Monitor. The Sheikh Mohammed cemetery in Khan Younis, where Palestinian journalist Muhannad Qishta's sisters are buried, has been replaced by an Israeli military outpost, a transformation confirmed by high-resolution pictures captured in February 2026. Entire residential neighbourhoods, including a 752-unit housing project in Rafah's Tal as-Sultan district and the historically significant Swedish village founded in 1965, have been reduced to rubble or converted into military zones.

The updated maps are being described by Palestinians as a wide-angle record of destruction that has accompanied a conflict in which nearly 73,000 people are reported to have been killed. Critics have noted that a red line drawn by former US President Joe Biden over a Rafah ground invasion was ultimately not enforced, and that Israel faced no measurable consequences for operations that have, in the assessment of human rights organisations, permanently altered the geography and collective memory of the Gaza Strip.
  • What does the destruction of cemeteries suggest about the long-term consequences for Palestinian identity?
  • How should the international community respond when documented red lines are not enforced?
Technology

Anthropic overtakes OpenAI with $965bn valuation

Anthropic, the company behind the Claude AI model, has raised $65 billion in a funding round led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital, pushing its post-money valuation to $965 billion and making it the most highly valued AI startup in the world, ahead of rival OpenAI. The company's growth is largely attributed to the widespread adoption of its enterprise-focused tools, particularly coding assistants released late last year, which have positioned Claude as an increasingly indispensable product for large businesses.

Anthropics trajectory has not been without controversy, however. The firm remains locked in a legal dispute with the Pentagon after refusing to remove safeguards that would have permitted Claude to be used for mass domestic surveillance or lethal autonomous weapons systems capable of operating without human oversight. Reports have nonetheless emerged suggesting that the US government has already used Claude in military operations. The company also delayed the release of its latest Mythos model over cybersecurity concerns, a decision that briefly escalated into a geopolitical episode and forced a partial easing of tensions with the White House.
  • How should regulators balance the commercial growth of AI firms against documented national security risks?
AMERICAS · Science
‘There is no way to stop this’: ‘Biotech Barbie’ Cathy Tie on her mission to genetically modify babies
OCEANIA · Environment
The household battery revolution that could change energy bills … and the world
AMERICAS · Business
Why $1bn in Balkans energy contracts are going to an obscure company connected to Donald Trump
AFRICA · Environment
Central Africa's wild meat dilemma: Why outright bans threaten food security for millions
theSIGNAL IN THE LAB
1VOCABULARY
epicentrecontainment
fatality ratevaluationsafeguards
displacementundetected
2GRAMMAR FOCUS
Passive voice (simple past and present perfect)
The passive voice is formed with 'be' + past participle. Use the simple past passive (was/were + past participle) for completed actions at a specific time, and the present perfect passive (has/have been + past participle) for actions with a connection to the present.
has been raised · were buried · was confirmed · has been replaced · have been recorded · was identified · has been delayed
  1. The Ebola outbreak in the Democratic Republic of the Congo by the World Health Organization as having a death rate of between 30 and 50 percent.
  2. More than 1,000 confirmed and suspected cases since the outbreak was formally declared on 15 May.
  3. The disease for the first time in the DRC in 1976, where it has since caused 17 recorded epidemics.
  4. Tedros Adhanom Ghebreyesus's visit to the outbreak's epicentre in Ituri province by one day.
  5. The Sheikh Mohammed cemetery in Khan Younis, where Muhannad Qishta's sisters , has been converted into an Israeli military outpost.
  6. According to satellite imagery, 94 percent of Gaza's cemeteries or partially demolished by Israeli military operations.
  7. $65 billion by Anthropic in a funding round led by Altimeter Capital, pushing its valuation to $965 billion.
3IDIOMS
Define each idiom in your own words. Then write one in a sentence of your own.
  1. by historical standards (Ebola article: '...alarming even by historical standards')
  2. understate the true scale (Ebola article: '...the figures likely understate the true scale of transmission')
  3. locked in a legal dispute (Anthropic article: 'The firm remains locked in a legal dispute with the Pentagon')
  4. not without controversy (Anthropic article: 'Anthropic's trajectory has not been without controversy')
  5. red line (Gaza article: '...a red line drawn by former US President Joe Biden over a Rafah ground invasion')
  6. reduced to rubble (Gaza article: 'Entire residential neighbourhoods...have been reduced to rubble')
4CRITICAL THINKING
All three articles touch on the theme of accountability — or the lack of it. The WHO warns that conflict is hampering Ebola containment, human rights monitors document the destruction of Gaza's cultural memory, and Anthropic resists government pressure over AI ethics. Considering these cases together, what does accountability actually require: the power to punish, the willingness to act, or something else entirely?
5CREATIVE · HEADLINES
Write a headline for the top story in each style:
  • Tabloid newspaper: e.g. bold, emotional, short — focus on the death rate or human suffering
  • Luxury magazine: e.g. detached, sophisticated — frame it as a global health or geopolitical issue
  • Activist blog: e.g. urgent, political — highlight systemic failures or who is responsible
6WRITING
The three articles each describe a situation in which powerful institutions — the WHO, the Israeli military, and an AI company — are making decisions that affect millions of ordinary people who have little or no say. Choose one of the three situations and write 200–250 words arguing whether the institution involved is acting responsibly, and what, if anything, should be done differently.
7DEGREES OF EXTREMITY
Complete each ladder from mild to strong. Fill in the missing words from the articles.
  • noticeable→→
  • hurt→→
  • damaged→→
  • worsened→→
  • helpful→→
  • complicating→→
  • debated→→
8SPEAKING
  1. Should armed groups ever declare ceasefires for humanitarian reasons?
  2. Can a company's valuation reflect its ethical choices?
  3. Is destroying cemeteries during conflict a war crime?
  4. Should AI firms refuse government contracts on moral grounds?
  5. How should the world respond to a 50 percent death rate?