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LISA GRAZINA JOHNSTON, MA, MPH, PHD
The focus of my work is on innovative sampling and population size estimation techniques for hidden and hard-to-reach populations, including people who inject drugs, sex workers, men who have sex with men, youth, and migrants.  

For the past ten years, I have worked as an independent consultant providing training on and technical assistance for planning and implementing surveys, including HIV biological and behavioral surveillance surveys (BBSS), among hidden populations using Respondent Driven Sampling (RDS) and Time Location Sampling and population size estimates using capture-recapture, multiplier, network scale-up and Handcock techniques.  

I also provide training and technical assistance on analysis of RDS data using RDSAT and RDS Analyst and am involved in several statistical and methodological review groups. 

I have authored or co-authored numerous journal articles, manuals, reports and books.  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 am currently an Associate/Adjunct Professor at Tulane University and a Senior Analyst with the University of California, San Francisco, Global Health Sciences.  I live in Amsterdam, Netherlands, with my husband and two cats.

I am fortunate to have provided assistance in the following countries. For a map and more specifications, please see Consultancies & Teaching.



   Albania    Cameroon    Jordan    Saint Vincent
   Angola    Chile    Libya    Serbia
   Antigua    Croatia    Madagascar    Seychelles
   Armenia    Dominican Republic    Mauritius    South Africa
   Australia    El Salvador    Montenegro    Thailand
   Bangladesh    Estonia    Morocco    Trinidad
   Barbados    Ethiopia    Nepal    Ukraine
   Belarus    Guatemala    The Netherlands    The United States
   Benin    Honduras    Norway    Venezuela
   Bolivia    India    Papua New Guinea    Vietnam
   Bosnia-Herzegovina    Indonesia    Philippines    Zambia
   Brazil    Iran    Russia    Zanzibar




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