Viral kinetics of primary dengue virus infection in non-human primates: A systematic review and individual pooled analysis

• Published in: Virology (New York, N.Y.) Vol. 452; pp. 237 - 246
• Main Authors: Althouse, Benjamin M, Durbin, Anna P, Hanley, Kathryn A, Halstead, Scott B, Weaver, Scott C, Cummings, Derek A.T
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.03.2014
• Subjects: Animals; Dengue - virology; Dengue virus; Dengue Virus - chemistry; Dengue Virus - genetics; Dengue Virus - physiology; Humans; Infectious Disease; Kinetics; Macaca mulatta; Non-human primates; Sylvatic dengue; Viral kinetics; Viremia - virology; Within-host dynamics; Sylvatic dengue; Within-host dynamics; Viral kinetics; Non-human primates; Dengue virus
• ISSN: 0042-6822; 1096-0341
• DOI: 10.1016/j.virol.2014.01.015

Abstract Viremia kinetics directly influence the clinical course and transmission dynamics of DENV, but many aspects of viral dynamics remain unknown. Non-human primates (NHP) have been used as a model system for DENV infection for decades. Here, we identify papers with experimentally-infected NHP and estimate the time to- and duration of viremia as well as estimate associations between these and serotype, inoculating dose, viremia assay, and species of NHP. We estimate the time to viremia in rhesus macaques to range from 2.63 to 3.32 days for DENV-2 and -1 and the duration to range from 3.13 to 5.13 days for DENV-4 and -2. We find no differences between non-human primates for time to viremia or duration, and a significant negative relationship between inoculating dose and duration of viremia. These results aid in understanding the transmission dynamics of sylvatic DENV non-human primates, an issue of growing importance as dengue vaccines become available.