Critically evaluate whether South-South groupings like BRICS can deliver credible alternatives to Western-led global health institutions.

The 18th BRICS Summit's New Delhi Declaration (12 September 2026) welcomed a dedicated Sub-Working Group to advance a BRICS Integrated Early Warning System (IEWS) for mass infectious diseases [1][2]. This marks a genuine deepening of South-South health cooperation, yet its credibility as an alternative to WHO-led architecture remains partial rather than established.

Grounds for credibility

• Institutional momentum: the IEWS moved from Terms of Reference endorsed at the 16th BRICS Health Ministers' Meeting, Chandigarh (July 2026), to leaders'-level endorsement within months [2][1].
• Manufacturing base: the Declaration ties preparedness to local production of medical products, leveraging BRICS' pharmaceutical and vaccine capacity — an asset the Global North cannot substitute for [3].
• Regulatory convergence: collaboration among BRICS Medical Products Regulatory Authorities can cut approval delays that slowed COVID-era access [2].
• Agenda ownership: priorities such as the BRICS TB Research Network and antimicrobial resistance reflect the disease burden of emerging economies, often marginal in donor-driven agendas [2][3].

Structural limits

• Not a parallel institution: the IEWS is a sub-working group inside existing BRICS health architecture, with no treaty basis, secretariat or binding obligations — unlike the IHR (2005) or the WHO Pandemic Agreement adopted in May 2025 [4].
• Implementation deficit: BRICS' consensus, non-binding method has historically produced declaratory follow-through across increasingly heterogeneous members.
• Interoperability: surveillance depends on data-sharing norms and pathogen-sharing rules being negotiated at WHO, not within BRICS [4].
• Divergent interests: differing health systems, transparency standards and China–India strategic friction constrain rapid joint response.

BRICS is therefore best read as a complement that adds bargaining weight and supply-side capacity, not a replacement for universal health governance. Its credibility will be judged by whether the IEWS delivers verifiable data-sharing and interoperable alerts with the IHR framework. Sustained secretariat support, measurable milestones and alignment with SDG-3 would let South-South cooperation democratise global health governance from within — the outcome India's 2026 chairship has set in motion.