Julio Croda is a researcher at FIOCRUZ Brazil and Associate Professor at UFMS and Yale School of Public Health. A leading expert in TB in incarcerated populations, he has led clinical trials in Brazilian prisons and advocates for the evaluation and implementation of TB vaccines in high-transmission carceral settings.

Dr. Hetty Widiastuti, M.H., (dr. as Medical Doctor, and M.H. refer to master of Law) is a senior correctional health expert from Indonesia with extensive experience in prison infectious disease control, particularly TB, HIV, and hepatitis. She has led national correctional health initiatives and represented Indonesia internationally, advancing evidence-based strategies to improve healthcare delivery and disease prevention in prison settings.