P-Values

Discover perspectives on the latest findings, biggest challenges and most exciting successes in our collective work.

At P-Values, you’ll find updates, perspective, insights and information from staff and partners working on the frontlines of research, advocacy and implementation. P-value is a statistical term for the probability that a trial result is reliable and not the outcome of chance. 

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Global Health Watch: World AIDS Day advocacy, first injections of LEN for PrEP, CDC turmoil, Kenya signs US MoU

This week we track both momentum and mounting threats in the HIV response: powerful World AIDS Day advocacy even as the US refused to recognize it; first recipients of lenacapavir for PrEP in Brazil, Eswatini, South Africa and Zambia; continued CDC turmoil that threatens trust in vaccines and science-based public health; the US’ “New G20” without South Africa; and Kenya signs the first US global health Memo of Understanding (MoU).

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In the Midst of Chaos, a Historic Opportunity this World AIDS Day

World AIDS Day in 2025 comes at a moment of unprecedented change. Over 60 years of investment in global health, forty years of innovation and progress in the fight to end the HIV epidemic, and many of the critical programs that provide access to HIV prevention in high burden countries are in disarray and at risk of collapse. Yet, in the midst of the chaos, there’s a historic opportunity to defeat HIV by scaling-up the breakthrough technology of long-acting injectable PrEP.

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Global Health Watch: PEPFAR negotiations leave communities behind, Global Fund replenishment falls short, continued chaos at CDC and NIH

Decisions and actions this week further weaken the global HIV response — from the exclusion of communities in the new PEPFAR US global health strategy negotiations to a Global Fund replenishment that falls short. Major disruptions at the US CDC and NIH and the White House “skipping” World AIDS Day — continue the erosion of accountability, trust, and the integrity of the public health system.

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Global Health Watch: World AIDS Day advocacy, first injections of LEN for PrEP, CDC turmoil, Kenya signs US MoU

This week we track both momentum and mounting threats in the HIV response: powerful World AIDS Day advocacy even as the US refused to recognize it; first recipients of lenacapavir for PrEP in Brazil, Eswatini, South Africa and Zambia; continued CDC turmoil that threatens trust in vaccines and science-based public health; the US’ “New G20” without South Africa; and Kenya signs the first US global health Memo of Understanding (MoU).

December 2025

In the Midst of Chaos, a Historic Opportunity this World AIDS Day

World AIDS Day in 2025 comes at a moment of unprecedented change. Over 60 years of investment in global health, forty years of innovation and progress in the fight to end the HIV epidemic, and many of the critical programs that provide access to HIV prevention in high burden countries are in disarray and at risk of collapse. Yet, in the midst of the chaos, there’s a historic opportunity to defeat HIV by scaling-up the breakthrough technology of long-acting injectable PrEP.

December 2025

Global Health Watch: PEPFAR negotiations leave communities behind, Global Fund replenishment falls short, continued chaos at CDC and NIH

Decisions and actions this week further weaken the global HIV response — from the exclusion of communities in the new PEPFAR US global health strategy negotiations to a Global Fund replenishment that falls short. Major disruptions at the US CDC and NIH and the White House “skipping” World AIDS Day — continue the erosion of accountability, trust, and the integrity of the public health system.

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November 2025

24 Hour Marathon to Save AIDS Research

AVAC worked together with a volunteer coalition of the nation’s leading HIV researchers and advocates to conceptualize, organize, and host the 24-Hour Marathon to Save HIV Research, which featured interactive presentations, discussions, and learning sessions to raise awareness about the lifesaving contributions of HIV research.

November 2025

Advocacy: Now more than ever – and AVAC needs you more than ever, too

2025 has been a year like no other. During these challenging times, AVAC’s Global Health Watch has been the go-to source for tracking and analyzing attacks on global health and the HIV response, pandemic preparedness, and human rights: from the US government’s foreign aid freeze and subsequent funding collapses to the politicization of science and erosion of public health infrastructure.

November 2025

Join Us at ICASA and the 8th Biomedical HIV Prevention Forum

As seismic shifts in global health funding and strategy unfold, the ICASA conference comes at a pivotal time. For more than three decades, ICASA has served as a critical platform founded by African scientists, activists, and advocates to fight stigma, drive research, and elevate African leadership in the HIV response. This year, this mission is more urgent than ever.

November 2025

AVAC Statement on the 8th Replenishment of the Global Fund to Fight AIDS, Tuberculosis and Malaria

Global public and private sector donors pledged over $11 billion at last week’s 8th Replenishment of the Global Fund to Fight AIDS, Tuberculosis and Malaria in Johannesburg, South Africa. In the current political and economic context, these pledges represent a recognition of the pivotal role of the Global Fund in saving lives and building health systems. But they fall well-short of the $18 billion goal.

November 2025

Global Health Watch: Global Fund replenishment, LEN for PrEP arrives, HIV funding uncertain post gov’t shutdown

This week’s newsletter publishes just as the Global Fund’s 8th Replenishment Summit in South Africa is taking place. The Global Fund represents one of the strongest symbols of global solidarity in the fight against HIV, TB, and malaria, but, despite early pledges from several European Union member states and private partners, key donors (including the UK, Germany and France) appear to be stepping back, with smaller or uncertain pledges at this critical moment, and it is not yet clear what the US will do.

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November 2025

Global Health Watch: Pandemic Accord, US MoU pressure, LEN progress & UK Global Fund cuts

African countries reaffirm support for a new multilateral Pandemic Accord even as pressure mounts to sign bilateral US health agreements. The UK has reduced its upcoming Global Fund pledge just weeks before the replenishment summit. Meanwhile, additional regulatory submissions of LEN for PrEP are being made reflecting accelerated actions and real lessons learned from earlier PrEP rollout.

November 2025

Cruel Ironies

We’re seeing one of the most challenging moments in HIV prevention history – and the cruelest ironies. On one side, science and advocacy are delivering unprecedented progress via injectable lenacapavir (LEN) for PrEP. On the other, the global systems meant to deliver LEN and other potential innovations are being dismantled.

November 2025

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P-Values Blog

Discover perspectives on the latest findings, biggest challenges and most exciting successes in our collective work.

Advocates Network

AVAC’s email list for organization and individuals interested in timely updates and critical perspectives on developments in biomedical HIV prevention.

Weekly News Digest

A comprehensive round-up of HIV prevention media coverage and scientific publications.

PxPulse

Each month this podcast uses interviews, discussion and first-person reflections to explore vital topics confronting the field of HIV prevention research.

PxWire

PxWire is AVAC’s quarterly update on biomedical HIV prevention. Each issue highlights key developments, challenges and opportunities, and features a centerspread infographic that provides a visual tool for framing these issues.

Pandemic Watch

Pandemic Watch is a curated news digest on the latest pandemic prevention, preparedness, and response (PPPR) news and resources.

Press Releases

A collection of official statements from AVAC.

AVAC in the News

Media clippings featuring AVAC, its staff and close partners in the news media.