Table 1 Median viral load (VL) in clustered and nonclustered individuals at different stages of HIV infection at diagnosis in people with wild-type virus, United States.

From: Natural selection favoring more transmissible HIV detected in United States molecular transmission network

Stage# CasesMedian VLaClusteredNonclusteredΔLog10 VLb
# Cases (%)Median VLa# Cases (%)Median VLa
All24,02848,9669015 (37.5%)45,10715,013 (62.5%)51,286−0.056
047678,093257 (54.0%)81,730219 (46.0%)74,5800.040
1591418,7002787 (47.1%)22,5173127 (52.9%)16,3300.140
2933738,4703991 (42.7%)46,2665346 (57.3%)33,4230.141
37280122,0001528 (21.0%)144,6195752 (79.0%)119,0310.085
Unknownc102133,200452 (44.3%)37,250569 (55.7%)30,1250.092
  1. aFirst reported VL (copies/ml) three months prior to or one-month post genotyping
  2. bDifference in median log10 VL between clustered and nonclustered cases
  3. cIndividuals with an indeterminate stage of diagnosis75