Meet The Team

The Naz board, leadership, staff and volunteers come from the communities we want to influence. We work at the intersection of cultures, sexualities, and beliefs to ensure that Black, Brown and Global Majority and LGBTQ+ communities have the information, support and services they need to make independent, informed decisions about their sexual health.

Our Trustees

NAZ is a registered charity (no. 1014056). The Board of Trustees is responsible for the management and strategic direction of NAZ. The Board meets at least five times a year. All Trustees are non-executive and none of them receives remuneration from NAZ. Our Declaration of Trust empowers the Trustees to take such steps as are necessary to achieve our objectives and make the appropriate arrangements for the sound management of the organisation and activities.

Sanjay Nazerali

Sanjay was Global Chief Strategy Officer at Dentsu Aegis Network, and Director of Marketing, Communications & Audiences at BBC News. Sanjay Nazerali joined Dentsu in 2021. Sanjay served as Global Managing Director & Chief Strategist at Dentsu. Sanjay Nazerali is currently Global Client & Brand President at Dentsu X.

Prof Mark Nelson

Professor Mark Nelson is a consultant physician at the Chelsea and Westminster Hospital, London. He is a professor of HIV medicine and senior tutor at Imperial College Medical School. Over the course of his career, Mark has built a large HIV practice with a special interest in HIV in patient care, co-infection with hepatitis B and C and the clinical utility of new antiretroviral agents. He has published over 650 papers on HIV and hepatitis. Professor Nelson has chaired the BHIVA guidelines committee for opportunistic infections and hepatitis C, and the committee on science and education. He is a member of the Guidelines Committee for Treatment, Malignancy and HIV Transmission.

Tina St Leger

Tina St Leger is Global Head of HR at ViiV. Tina joined ViiV Healthcare from GSK, where she was HR Business Leader for UK Pharmaceuticals. There, she led the implementation of a new business model and embedded a culture of continual process improvement. She previously worked for the UK retailer Marks and Spencer in finance, leadership and change management roles.

Dr Nidhee Jadeja

Dr Nidhee Jadeja is public health and policy specialist, born and raised in Botswana. She is a Senior Manager at Gavi, the Vaccine Alliance, where she works on global vaccine policy and strategies to expand equitable access to immunisation. She previously worked at Wellcome and supported the establishment of the Africa Science Foundation in Nairobi, and has also supported the Immunization, Vaccines and Biologicals (IVB) department at the World Health Organization.

Medical Board

Dr Hamish Mohammed

Dr Hamish Mohammed is a Consultant STI Surveillance & Prevention Scientist at the UK Health Security Agency where he leads on national surveillance of STIs. He has extensive experience in STI research, and in responding to emerging and re-emerging infectious disease outbreaks including England’s public health response to the mpox outbreak, the COVID-19 pandemic, and sexual transmission of Zika. He has also been seconded to the World Health Organization to support polio eradication in India, and the public health response to the 2014/15 Ebola outbreak in Sierra Leone.

Dr Rageshri Dhairyawan

Dr Dhairyawan is a Consultant in Sexual Health and HIV at Barking, Havering and Redbridge NHS Trust and has worked in sexual health in East London for more than five years. She has a specialist interest in working with minoritised ethnic communities and in outreach testing. She is also currently Chair of the BASHH Sexual Violence Group, and recently published her debut book "Unheard Voices: The Medical Practice of Silencing" in July 2024.

Dr Vanessa Apea

Dr Vanessa Apea is a Consultant Physician in Sexual Health and HIV Medicine at Barts Health NHS Trust. She is also an Honorary Senior Lecturer at the University of London and a Fulbright Scholar, as well as a Fellow of the Royal College of Physicians and founder of the Standard Health Group, which works in the UK and Ghana. Vanessa conceived of Naz's "Zero HIV Stigma Day" global awareness campaign during the spring of 2020. She has co-led the campaign as it enters into its third year.

Danielle Solomon

Danielle is a Specialist Registrar in Public Health and a Wellcome Trust Clinical Fellow at the Institute for Global Health, University College London (UCL). Her current research focuses on unmet needs within sexual and reproductive health. Danielle previously practiced as a sexual health & HIV physician at the Mortimer Market Centre in central London.

Prof Jaime Vera

Jaime Vera is a Professor in HIV Medicine at Brighton and Sussex Medical School. He obtained his medical degree from the Columbian School of Medicine followed by training in general internal medicine in London. Jaime is also a Consultant Physician for the Lawson unit at University Hospitals Sussex NHS Foundation Trust where he is the clinical lead for the combined HIV and geriatrics, neurology, and memory clinics.