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Pandemics and Biosecurity
2JUN

WHO defers vaccine-sharing pact to 2027

3 min read
09:17UTC

WHA79 deferred the Pandemic Agreement's vaccine-sharing annex to 2027, leaving the treaty's equity core inoperative during an emergency that has no licensed product to share.

ScienceDeveloping
Key takeaway

The treaty's vaccine-sharing core stays unfinished until 2027, just as an outbreak with no licensed product needs it.

The 79th World Health Assembly (WHA79) deferred adoption of the Pandemic Agreement's Pathogen Access and Benefit-Sharing (PABS) annex to WHA80 in May 2027, or to an earlier special session if a text is ready 1. The next negotiating round, the seventh Intergovernmental Working Group session (IGWG7), is set for 6 to 17 July 2026 2. PABS is the part of the treaty meant to guarantee that countries which share virus samples receive fair access to the vaccines made from them. Tedros Adhanom Ghebreyesus said real progress had been made, and member states cited a need for more time 3.

This is the second slip in a month: negotiators had already agreed to extend the PABS talks at the resumed sixth IGWG session on 1 May . The annex has stalled because high-income states resist binding sharing obligations they fear will constrain their own manufacturers, the same fault line that has dogged every benefit-sharing negotiation since the 2007 dispute over Indonesian H5N1 samples.

The timing gives the deferral its edge. The treaty's vaccine-sharing core stays inoperative at the exact moment a novel-species emergency with no licensed countermeasure would have tested it. If a Bundibugyo vaccine reaches trials this year, there is still no binding legal route to push doses to the low-income countries carrying the outbreak; allocation stays at the discretion of manufacturers and the buyers WHO can pay first. The world adopted the treaty in 2024 and, two years on, still cannot do the one thing its equity advocates designed it to do.

Deep Analysis

In plain English

When a new dangerous virus emerges, countries need to share samples of it quickly so that scientists around the world can study it and start making vaccines. The problem is that in past pandemics, like H1N1 in 2009, the countries that shared their virus samples did not get any of the vaccines that were made from those samples. Rich countries bought them all first. PABS (Pathogen Access and Benefit-Sharing) is meant to be the rule that fixes this: countries share samples and in return get guaranteed access to vaccines produced from them. The 79th World Health Assembly, which met in Geneva in May 2026, pushed the decision on PABS to a 2027 meeting because member states cannot agree on how the rules would work in practice. During the current Bundibugyo Ebola outbreak, there is no licensed vaccine for this species at all; the PABS negotiations apply to future outbreaks where a sharing-and-access mechanism could make the difference between equitable and inequitable vaccine distribution.

First Reported In

Update #4 · Ebola triples, response misfires

Konrad-Adenauer-Stiftung Geneva Multilateral Dialogue· 24 May 2026
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Different Perspectives
Imperial College London / Cori and Ferguson
Imperial College London / Cori and Ferguson
Anne Cori and Neil Ferguson place the case-fatality ratio at 30 to 40 per cent and read the 6.8-to-1 suspected-to-confirmed ratio as evidence that the laboratory figure understates true lethality. Many people die before a swab reaches them.
Uganda / Diana Atwine
Uganda / Diana Atwine
Diana Atwine's ministry traced the imported Kampala index case and leant on protocols rehearsed in Uganda's 2022 Sudan ebolavirus response, which contained 142 cases in 113 days without a vaccine. Nine confirmed cases now test whether that playbook holds across two districts.
United States / HHS
United States / HHS
Washington imposed a 21-day entry ban on DRC, Uganda and South Sudan nationals against WHO advice, and sought a 50-bed quarantine site in Nairobi that a Kenyan court suspended on 29 May. The posture rests on a thin federal bench with vacant senior public-health roles.
WHO / Tedros Adhanom Ghebreyesus
WHO / Tedros Adhanom Ghebreyesus
Tedros Adhanom Ghebreyesus called the outbreak 'outpacing us' on 25 May and visited Ituri on 28 May, arguing that stopping transmission depends entirely on humanitarian access. WHO opposes any restriction of travel to or trade with DRC or Uganda.
Africa CDC / Jean Kaseya
Africa CDC / Jean Kaseya
Jean Kaseya declared the continental emergency before WHO and opposed the US travel ban as punishment by passport rather than by exposure. The Africa CDC raised nearly $500 million in days and frames the response as African-led, coordinated from Addis Ababa rather than waiting on Geneva.
European Union / ECDC
European Union / ECDC
ECDC activated an EU Health Task Force, assessed European Bundibugyo import risk as very low, and flagged the recombinant clade Ib/IIb mpox strain in four countries as a surveillance watch item. Both calls reflect the same post-2024 IHR mandate: ECDC acts as a continental early-warning layer rather than waiting for WHO Disease Outbreak News guidance.