Md. Saiful Islam is a doctoral fellow in the Social and Behavioral Interventions (SBI) program within the Department of International Health at the Johns Hopkins Bloomberg School of Public Health. His primary research interests include social epidemiology, mental health, and behavioral problems, with a focus on key populations such as mothers, children, adolescents, and marginalized communities. Previously, he played a critical role in the Rohingya Response, leading maternal health surveillance initiatives under the SRH WG led by the UNFPA. He also worked at the Health Systems and Population Studies Division of icddr,b, contributing to multiple research projects. During his early career, he completed an internship focused on mental health from the icddr,b. He has a strong passion for research and collaboration in epidemiological studies. He has published over 70 articles in renowned international journals and serves as an Academic Editor for PLOS ONE journal. His work spans numerous public health projects at different NGOs in Bangladesh, funded by CDC, UNFPA, USAID, and SIDA. Notably, he has collaborated on seven global epidemiological surveys as a collaborator from Bangladesh. In recognition of his early research achievements, he was featured in the national newspaper Ekushey Sangbad in an article titled “Jahangirnagar University’s Best Five Researchers in 2022 Publishing Research Papers.”