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. 2003 Jan;41(1):449–452. doi: 10.1128/JCM.41.1.449-452.2003

FIG. 1.

FIG. 1.

Distribution of HIV-1 RNA levels in genital secretions from 25 HIV-1-infected African women. (A) Correlation between levels of HIV-1 RNA in cervicovaginal secretion lavage samples (acellular fraction) and in the endocervical secretions collected by swabbing. (B) Correlation between levels of HIV-1 RNA in vaginal fornix secretions and in vaginal wall secretions collected by swabbing. Vertical and horizontal dashed lines, threshold of positive detection. The threshold of HIV-1 RNA detection is 1.69 log copies/ml for wash samples and 1.1 log copies/μg of total RNA for swab samples. An arbitrary value of 10 HIV-1 RNA copies was used when HIV-RNA was undetectable in the vaginal washing or in genital swab samples.