About the IAS

Founded in 1988, the International AIDS Society (IAS) is the world's largest association of HIV professionals, with members from more than 180 countries. IAS members work on all fronts of the global response to AIDS, and include researchers, clinicians, policy and programme planners and public health and community practitioners on the frontlines of the epidemic.


We connect

We connect

By convening the world’s foremost international conferences on HIV and AIDS and specialized meetings, we provide critical platforms for presenting new research, promoting dialogue and building consensus to advance the global fight against HIV.

We mobilize

We mobilize

By advocating for the right to an evidence-based response to HIV and for a concerted research effort to build that evidence base, we contribute to continuous improvement of the global response to HIV.

We promote

We promote

By promoting dialogue, education and networking, and providing access to best practice, professional development and skills building, we help build capacity and close gaps in knowledge and expertise at every level of the HIV response.


The IAS organizes the world’s two most prestigious HIV conferences, each convened biennially in alternating years. The International AIDS Conference is the largest conference on any global health or development issue, and provides a unique forum for the intersection of science and advocacy. The IAS Conference on Pathogenesis, Treatment and Prevention brings together a broad cross section of HIV professionals and features the latest HIV science, with a focus on implementation – moving scientific advances into practice.

In addition, the IAS advocates for urgent action to reduce the global impact of HIV, including increased investment in HIV cure research; optimizing treatment and care for infants, children and adolescents with HIV in resource-limited settings; preventing and treating HIV-related co-infections; and expanding access to prevention, treatment and care for key populations at higher risk for HIV – such as men who have sex with men, people who inject drugs, sex workers and transgender individuals – including protecting their human rights by combatting punitive laws and discriminatory policies.