Methods to Evaluate the Preclinical Safety and Immunogenicity of Genetically Modified Live-Attenuated Leishmania Parasite Vaccines
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Updated: Sep 12, 2026

In vivo Imaging of Transgenic Leishmania Parasites in a Live Host
Published on: July 27, 2010
Sreenivas Gannavaram1, Parna Bhattacharya2, Ranadhir Dey2
1Laboratory of Emerging Pathogens, Division of Emerging and Transfusion Transmitted Diseases, Center for Biologics Evaluation and Research, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20993, USA. Sreenivas.gannavaram@fda.hhs.gov.
Abstract:
Live-attenuated parasite vaccines are being explored as potential vaccine candidates since other approaches of vaccination have not produced an effective vaccine so far. In order for live-attenuated parasite vaccines to be tested in preclinical studies and possibly in clinical studies, the safety and immunogenicity of these organisms must be rigorously evaluated. Here we describe methods to test persistence in the immunized host and immunogenicity, and to identify biomarkers of vaccine safety and efficacy with particular reference to genetically attenuated Leishmania parasites.
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