Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2004 Nov;78(21):11807–11815. doi: 10.1128/JVI.78.21.11807-11815.2004

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2004, American Society for Microbiology

PMC Copyright notice

FIG. 5. — Comparison of the infectivities of sequential R5^narrow and R5^broad(1) to R5^broad(3) isolates from seven patients. A plaque assay with U87.CD4-CCR5 cells was used, and titers were determined at the same time with the same amount of p24 antigen per volume of virus supernatant. A pairwise comparison of sequential isolates with different R5 phenotypes was performed. Results are shown as ratios of numbers of plaque-forming units of R5^broad(1), R5^(broad2), and R5^(broad3) isolates to R5^narrow isolates per milliliter, where the infectivity of R5^narrow was set at 1. Error bars show intra-assay variation. Infectious titers of R5^broad(1), R5^(broad2), and R5^(broad3) isolates were significantly higher than those of isolates with the R5^narrow phenotype (P = 0.04, Wilcoxon signed-rank test).