Independent Epidemiology Consultant
LISA GRAZINA JOHNSTON, MA, MPH, PHD
The focus of my work is on innovative sampling and population size estimation techniques among hard-to-reach populations, including people who inject drugs, sex workers, men who have sex with men, transgender persons, youth and migrants.
For the past fifteen years, I have worked as an independent consultant providing training on and technical assistance for planning and implementing surveys to measure HIV and other infections (TB, hepatitis, sexually transmitted infections [STI]) prevalence and behaviors and experiences (i.e., HIV testing, health services coverage, sexual and drug use risks, stigma and discrimination, HIV/STI knowledge, etc.) among vulnerable and hard-to-reach populations. I have provided technical assistance to over 40 countries to conduct more than 300 surveys using respondent driven sampling (RDS), Time Location Sampling (TLS) and other sampling methods. I have also utilized numerous population size estimation techniques including capture-recapture, unique object and service multipliers, network scale-up and the Successive Sampling PSE.
See more about the methods I use at Technical Assistance and and Respondent Driven Sampling.
Teaching and training on respondent driven sampling and other research methods
I also provide training and technical assistance for Ministries of Health, Universities and the World Health Organization
on the analysis of data collected using RDS, TLS and other sampling methods. I am the co-founder of Hidden Populations Methods Research Group which has developed user friendly software, RDS Analyst, in R program to analyse RDS data. I am an invited expert to several statistical and methodological review groups.I have been hired by AIDS Alliance, Family Health International/FHI 360, Global Fund to Fight AIDS, Tuberculosis and Malaria, KNCV TB, Ministries of Health, UNAIDS, UNDP, UNFPA, UNICEF, UNESCO, UNODC, StopTB, Universities, WHO, and other organizations and institutions.
Peer-reviewed publications, reports and manuals
I have authored or co-authored numerous journal articles, manuals, reports and books.
Education and University Affiliations
I received an MA from George Washington University, Washington, DC, an MPH from the University of California, Los Angeles and a PhD from Tulane University, School of Public Health and Tropical Medicine, New Orleans, LA. Aside from being an independent consultant, I have affiliations with Tulane University, School of Public Health and Tropical Medicine and University of California, San Francisco, Global Health Sciences.