Leadership & staff

At the heart of INHSU are dedicated teams and individuals who oversee our strategic approach and ensure the smooth day-to-day running of the organisation.

Our highly respected and professional board connects us to our community, provides access to global experts and supports ongoing innovation. Our secretariat is a small team with big capacity, specialising in strategy, education, programming, and administration.

INHSU is also supported by the Australasian Society for HIV, Viral Hepatitis and Sexual Health Medicine (ASHM), who provides on-going, cost-effective infrastructure support.

Our board of directors 

Jason Grebely


The Kirby Institute, UNSW Sydney, Australia.

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Natasha Martin
Vice President

Natasha Martin University of California San Diego, United States

University of California San Diego, United States.

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Matthew Bonn Canada

Safe Supply & Drug Policy consultant, Drug User Activist & Freelance Writer, Canada.

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Costa Rican Association on Drug Studies and Interventions (ACEID), Costa Rica.

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Oluwaseun Falade-Nwulia

Oluwaseun Falade-Nwulia

Johns Hopkins University School of Medicine, Baltimore, MD, United States.

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Hepatitis C Elimination Coordinator South for the NHS APA (NHS Substance Addiction Providers Alliance)

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Angela McBride

South African Network of People Who Use Drugs (SANPUD), South Africa.

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Mercy Nyakowa

Kenya flag

National AIDS and STI Control Program (NASCOP), Kenya.

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Andrew Scheibe

Andrew Scheibe INHSU

TB HIV Care, South Africa.

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Peter Vickerman

University of Bristol, UK. 

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Our secretariat

Emma Day, Executive Director



Responsible for overseeing the operational management, programmatic work and strategic direction of the organisation.

Nikitah Habraken, Director of Programs


Oversees programs, project business development, stakeholder engagement and partnership building.

Olivia Dawson, Program Manager



Responsible for leading the development, delivery and monitoring and evaluation of INHSU programs.

Brooke Nolan, Marketing and Communications Manager


Oversees communications activities for the INHSU organisation and all projects. Also manages INHSU membership.