Panel Speakers

Webinar 1

1. Dr Wong.JPG

Dr. Wong Chen Seong
Consultant, NCID
Deputy Director, National HIV Programme


Wong Chen Seong is a Consultant physician with the Dept of Infectious Diseases, Tan Tock Seng Hospital, as well as the National Centre for Infectious Diseases, where he is the Head of the Clinical HIV Programme, and the Deputy Director of the National HIV Programme. His clinical and research interests are in HIV medicine, including HIV treatment and prevention, and the sociobehavioural determinants of HIV and other STIs. He is also actively involved in medical education and training, and is the Programme Director for the National Healthcare Group Infectious Diseases Residency Programme, in addition to his appointment as Adjunct Assistant Professor with the Yong Loo Lin School of Medicine, National University of Singapore.

Adjunct A/Prof Martin Chio

Senior Consultant, NSC
Head, Department of STI Control


Dr Martin Chio is a Senior Consultant Dermatologist at the National Skin Centre Singapore and Head of the DSC clinic. He was awarded an NMRC medical research fellowship as part of the MOH HMDP to pursue a Masters of Science at University College London and the London School of Hygiene & Tropical Medicine; he was awarded the best dissertation prize. He is a Fellow of the Royal College of Physicians (London) and the Academy of Medicine Singapore - he was most recently the Chair, Chapter of Dermatologists (2015 – 2019). His clinical interests are STIs, HIV & genital dermatology, qualitative research and skin cancers. He is an avid clinician educator and has been appointed Adj Associate Professor with both the Saw Swee Hock School of Public Health & Duke-NUS Medical School, Adj Assistant Professor with the NTU Lee Kong Chian School of Medicine, Clinical Senior Lecturer with the Yong Loo Lin School of Medicine - he was awarded the YLLSOM Dean’s award for Teaching Excellence twice. He is a visiting consultant with the SAF Medical Corps & Tan Tock Seng Hospital and also an associate mediator with the Singapore Mediation Centre. For his active volunteer work at both the Dover Park Hospice and Villa Francis home for the aged, he was awarded the Healthcare Humanity Award.

Ms. Sumita Banerjee

Executive Director, AfA

Sumita has almost 20 years’ experience in public health having worked in India, Canada, the UK and Singapore. Sumita has been leading the team at Action for AIDS as its Executive Director for over 5 years. Prior to joining AfA, Sumita worked as a global advisor for Plan International UK’s sexual and reproductive health programs based out of their office in London. Before that she worked in Toronto with the International Council of AIDS Service Organizations, accredited to the UN’s ECOSOC, leading their HIV programmes globally. During her career, Sumita has led HIV programmes and provided policy guidance to over 30 countries working in close partnership with national governments and civil society. She has an MSc in Health policy and a Masters’ in Social Science.

Ms. Vanessa Ho

Executive Director, Project X

Vanessa Ho is the Executive Director of Project X, an organization that provides social, legal, and emotional support for sex workers in Singapore. This is a full time position that she has held since 2011, and one that has provided her many opportunities to meet and connect with sex workers in Singapore and around the world. She has written and spoken about sex work, human trafficking, rape culture, and LGBTQ rights in Singapore. Vanessa holds the view that if people can speak about sex, gender and sexuality in open and in non-judgmental ways, society will become a safer place for everyone.

Mr. Eamonn Murphy

(UNAIDS) – Regional Director, UNAIDS, Asia and the Pacific

As Regional Director for Asia and the Pacific, Eamonn Murphy supports countries across the region in achieving the goals outlined in the 2016 United Nations Political  Declaration on Ending AIDS. He leads and facilitates a joint United Nations response to support countries and their  HIV programmes, which includes strengthening the links between governments, civil society, the United Nations system and development partners.


Mr Murphy was previously the UNAIDS Country Director in Myanmar, where he supported Myanmar’s significant scale-up of services and helped to create an enabling environment and overcome legislative obstacles. Prior to that, he served in  Vietnam as UNAIDS Country Director, where he was honoured with the Order of  Friendship by the President in 2010, UNAIDS headquarters as Director of  Governance, United Nations System and Donor Relations, and as the UNAIDS  Country Coordinator in Myanmar.  Before joining the United Nations, Mr Murphy held a number of senior positions with the Australian Government, including Director for Health Sectors with AusAID in the  Foreign Ministry, as well as Assistant Secretary for Communicable Diseases and  Environmental Health and Director of the National AIDS Programme for the  Commonwealth Health Department.

Webinar 2

A/Prof. Matthias Toh

Director, National Public Health & Epidemiology Unit, NCID

Dr Matthias Toh is a Public Health Physician. As Director of the National Public Health & Epidemiology Unit (NPHEU) at NCID, he oversees the national HIV registry and coordinates operations for contact tracing. He leads the epidemiology team to provide insights on global and local situation for communicable diseases. Prior to joining NCID, Dr Toh practiced at Ang Mo Kio Polyclinic. He has special interest in disease prevention and control, health promotion and primary care. He is an Adjunct Associate Professor with the Saw Swee Hock School of Public Health (NUHS) and Faculty Member for National Preventive Medicine Residency Program.

Mr. Chronos Kwok

MSM Programme Senior Manager, AfA

Chronos is the current Senior Manager of the MSM Programme at Action for AIDS, Singapore. Since making his switch from civil service to the social services sector 4 years ago, he strongly believes that more can be done to support marginalized groups in Singapore, so as to build an inclusive and compassionate society. Although he has only been in his role for just over a year, Chronos was an active volunteer with AFA since 2005. He recently obtained a Graduate Diploma in Social Work and is continuing to pursue his Masters at the Singapore University of Social Sciences.

Mr. Terry Lim

Heterosexual Programme Senior Manager, AfA

Terry has had 10 years of experience in heterosexual outreach work and yet is still learning and growing in this ever changing environment especially as we deal with the new normal. Terry sees himself as a connector and a bridge, taking the policies and big picture on HIV, digesting and understanding them, and then translating it to a different level on the ground to an “Ah Beng” and “uncle” audience. He has found some success in doing this to achieve and bring about change in behaviour over the years. Terry has pioneered many cutting edge outreach initiatives that have become the foundation of the heterosexual programme like the Safe Sex Shows, getai, club, coffeeshop and ferry terminal outreach. Terry continues to find outreach work challenging and yet rewarding and is glad to be part of a team that fights everyday to bring down the rate of HIV/Aids and to increase the awareness amongst the community.

Dr. Jonathan Ti

Drs Tan and Partners

Dr. Jonathan Ti graduated from the Royal College of Surgeons in Ireland in 2011 before moving to Singapore to further his medical training. He completed his postgraduate qualifications for Membership to the Royal College of Physicians (UK) in 2015 and obtained his certificate in Men’s Health and Andrology in 2017. Dr. Jonathan Ti underwent training for several years with the Internal Medicine Residency Program in tertiary and community hospitals across the country, before joining DTAP Clinic in 2017 as a General Practitioner. He has special interests in Men’s Health and HIV and Sexual Health, as well as Endocrine and Metabolic disease management. He has also taken on a role in developing guidelines for the Blueprint to End HIV in Singapore (Community Subsector) and was involved in the creation of Singapore’s National PrEP Guidelines, and hopes to continue strengthening primary healthcare in Singapore.

Mr. Alaric Tan

Founder/Executive Director of The Greenhouse 

Alaric Tan is a trauma-survivor. For nearly two decades, he had taken drugs to cope with the pain from a life marred by abuse, depression and shame over his sexual orientation. The desire to share his recovery from addiction with others led to the birth of The Greenhouse, a substance addiction recovery centre for marginalised and vulnerable communities. He adopts a trauma-informed approach in his work, often sharing his experience publicly with others, to help them understand addiction better as both a mental health and public health issue. He also volunteers with organisations that provide recovery-related outreach and training at hospitals, institutions and community organisations.

Webinar 3

Dr. Benson Yeo

Consultant, NSC
Deputy Head, DSC

Dr Benson Yeo is a consultant at the National Skin Centre and Deputy Head of the Department of STI Control (DSC) clinic. He is also a member of the Executive Committee of Action for AIDS Singapore. He graduated from the Yong Loo Lin School of Medicine in 2008 and completed his specialty training in dermatology in 2016, with subspecialty interest in sexually transmitted infections.

Mr. Rayner Tan

PhD candidate and HIV researcher
Saw Swee Hock School of Public Health

Rayner Kay Jin Tan is a PhD candidate at the Saw Swee Hock School of Public Health, National University of Singapore. Rayner has a background in sociology and is a socio-behavioural researcher in public health. His current research explores stigma as a determinant of HIV testing among gay, bisexual and other men who have sex with men, sexualized substance use, and the social determinants of sexual health.

Mr. Calvin Tan

MSM Programme Coordinator, AfA

Calvin Tan is an HIV advocate ever since he was diagnosed with HIV during his late teens. Over the years he has opened to the public on the discrimination he has faced; both from others and from himself. As a result, he has become a voice for his community – the youth and the stigmatized.

Ms. Rena Janamnuaysook

Program Manager, Transgender Health

Rena Janamnuaysook works as a program manager for transgender health at the Institute of HIV Research and Innovation (IHRI) in Bangkok, Thailand, where she established the Tangerine Community Health Clinic as the first transgender-led health clinic in the region. She manages and provides technical guidance for the development and implementation of HIV and AIDS research and programs for transgender population, ensuring effective systems and processes are in place to support high-quality research and programs to advance the work of IHRI in serving vulnerable population. Rena’s previous roles include Project Management Specialist in HIV Key Population for the United States Agency for International Development – Regional Development Mission for Asia. In addition, Rena co-founded the Thai Transgender Alliance, the first transgender-owned human rights organization in Thailand. She received a master degree in international development from the University of Birmingham, United Kingdom.

Webinar 4

A/Prof. Vernon Lee

Director of Communicable Diseases, MOH

A/Prof Vernon Lee is a preventive medicine physician and Director of the Communicable Diseases Division at the Ministry of Health, Singapore. He is also adjunct Associate Professor at the Saw Swee Hock School of Public Health, National University of Singapore; and sits on the Council of the Academy of Medicine, Singapore. He has previously worked in the WHO headquarters in Geneva and WHO Office in Indonesia. A/Prof Lee graduated from medical school at the National University of Singapore. He also holds a PhD in epidemiology from the Australian National University, and the Master in Public Health and Master of Business Administration degrees from the Johns Hopkins University, USA.

A/Prof. Lee Cheng Chuan

Senior Consultant, NCID

Dr Lee Cheng Chuan is a senior consultant in infectious diseases. He received his medical degree and Master of Internal Medicine from  NUS. He is a fellow of the Royal College of Physicians in Edinburgh, UK.  

Dr Lee's special clinical interest is in HIV medicine. He is Associate Professor at YLL  School of Medicine, NUS and LKC SOM, NTU. He received the TTSH Best Teacher Award 2018-2019 and NHG Teaching award in 2019.

Together with the volunteers, he is an advocate for patients with HIV/AIDS. He was given the Red Ribbon award by AFA in 2016. In 2013, Dr Lee received the National Healthcare Humanity Award.

Dr Dariusz Piotr Olszyna

Senior Consultant, Division of Infectious Diseases, National University Hospital

Dr Olszyna received his medical degree and a PhD from the University of Amsterdam in the Netherlands. He has been working in the field of HIV for more than a decade with special clinical interests in Pre-Exposure Prophylaxis, Treatment as Prevention, and viral hepatitis co-infections. Dr. Olszyna joined the Division of Infectious Diseases at the National University Hospital in 2008. He is one of the co-founders and presently Clinical Director of the NUH HIV Program and founder of NUH HIV Prevention Service (BEPREP Clinic). Dr Olszyna also serves as the Head of Division of Advanced Internal Medicine at the National University Hospital and Vice-Chairman Medical Board for Education of the Alexandra Hospital.

Ms. Nurafiqah A


Nurafiqah is student in a local Polytechnic. She is the fifth person to come out publicly as a person living with HIV and is the first woman to do so. As part of her advocacy work, Nurafiqah regularly attends interviews to speak about living with HIV in Singapore as well as share about HIV stigma and discrimination. She is also co-managing the page on Facebook to educate people about 'Undetectable = Untransmittable'. She believes that with HIV treatment, any person living with HIV can have a life like anyone else - be it having a family, going to school, or having a job.