Advancing Health Online (AHO), a fiscally sponsored project of Global Impact, was launched by Merck/MSD and Meta in June 2021 to advance understanding of how social media and digital tools can be used to improve health outcomes and resilience by bringing together actors from the technology, health, global development and academic sectors.

In September 2023, on the sidelines of the UN General Assembly, AHO and Gavi launched VaxSocial. AHO committed up to US$ 6 million, matched by the Gavi Matching Fund, to support a US$ 12 million portfolio of country-driven projects in India, Indonesia and Nigeria that used social media, behavioural science, trusted messengers and digital tools to build confidence in routine immunisation, and support vaccine uptake.

Across the portfolio, VaxSocial engaged more than 18 million users through social media content and digital health tools; meaningfully reached more than 130,000 caregivers through two-way digital touchpoints such as chatbots, WhatsApp support groups and hotlines; and trained approximately 3,000 health workers and community actors to strengthen vaccination communication. Early results showed measurable improvements in vaccine attitudes, knowledge, intention and uptake, including a 13.8 percentage point (pp) improvement in vaccine attitudes in Indonesia; and an 8.95pp increase in the probability of HPV vaccination following pharmacist engagement in Nigeria.

The partnership generated practical evidence on how digital approaches can amplify trusted human connection in vaccination communication. Key lessons from VaxSocial showed that technology is most effective when paired with local messengers, embedded in health systems and designed around caregivers’ everyday channels of communication, with responsible use of AI and chatbots helping improve user journeys and engagement.

Proceeds to Gavi 6.0 as of 30 June 2026†
Contributions to Gavi Board approved financing instruments

*Local currency

†Proceeds are the funds that Gavi receives from donor commitments, either through direct donor payments, funding raised in advance against future donor pledges through IFFIm, or AMC funds released by the World Bank.

Contributions and pledges per strategic period (US$ millions)

Hover over the bar chart above to view the data

Direct Contributions (including Matching Fund)

Non-US$ contributions are converted to US$ as follows:

  • Before Gavi 6.0 (2000–2025): exchange rate on date of receipt; where hedged (2014–2025), the hedge rate applies instead.
  • Gavi 6.0 (2026 onward, received & future contributions and Matching Fund Pledges): Bloomberg replenishment rate, 16:00 London time, 25 June 2025.

IFFIm Contributions

Non-US$ contributions are converted to US$ as follows:

  • Received Contributions: rate confirmed by the World Bank's International Bank for Reconstruction and Development (IBRD).
  • Future, signed contribution agreements: exchange rate at time of signing.
  • Future, unsigned contribution agreements: Bloomberg replenishment rate, 16:00 London time, 25 June 2025.

 

All donors