Dynamics of viremia in primary HIV-1 infection in Africans: insights from analyses of host and viral correlates.

Abstract:

:In HIV-1 infection, plasma viral load (VL) has dual implications for pathogenesis and public health. Based on well-known patterns of HIV-1 evolution and immune escape, we hypothesized that VL is an evolving quantitative trait that depends heavily on duration of infection (DOI), demographic features, human leukocyte antigen (HLA) genotypes and viral characteristics. Prospective data from 421 African seroconverters with at least four eligible visits did show relatively steady VL beyond 3 months of untreated infection, but host and viral factors independently associated with cross-sectional and longitudinal VL often varied by analytical approaches and sliding time windows. Specifically, the effects of age, HLA-B(⁎)53 and infecting HIV-1 subtypes (A1, C and others) on VL were either sporadic or highly sensitive to time windows. These observations were strengthened by the addition of 111 seroconverters with 2-3 eligible VL results, suggesting that DOI should be a critical parameter in epidemiological and clinical studies.

journal_name

Virology

journal_title

Virology

authors

Prentice HA,Price MA,Porter TR,Cormier E,Mugavero MJ,Kamali A,Karita E,Lakhi S,Sanders EJ,Anzala O,Amornkul PN,Allen S,Hunter E,Kaslow RA,Gilmour J,Tang J,IAVI Africa HIV Prevention Partnership.

doi

10.1016/j.virol.2013.11.024

subject

Has Abstract

pub_date

2014-01-20 00:00:00

pages

254-62

eissn

0042-6822

issn

1096-0341

pii

S0042-6822(13)00646-6

journal_volume

449

pub_type

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