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Volume 10, Number 7—July 2004
Research

Recombinant Viruses and Early Global HIV-1 Epidemic

Marcia L. Kalish*Comments to Author , Kenneth E. Robbins*, Danuta Pieniazek*, Amanda Schaefer*, Nzila Nzilambi†, Thomas C. Quinn†‡, Michael E. St. Louis*†, Ae S. Youngpairoj*, Jonathan Phillips*, Harold W. Jaffe*, and Thomas M. Folks*
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †Project SIDA, Kinshasa, Zaire; ‡National Institutes of Health, Bethesda, Maryland, USA

Main Article

Table 1

Comparison of intrasubtype/CRF genetic distances and subtype distributiona

Subtype/CRF Kinshasa: mid-1980s DRC: 1997
n
 Nucleotide distance (%)
 % frequency of subtype
 n
 Nucleotide distance (%)
 % frequency of subtype
A
 22
 15.1
 44
 84
 20.8b
 46
C
 3
 13.1
 6
 18
 18.0b
 10
D
 10
 12.1
 20
 23
 18.7b
 13
CRF01-AE
 3
 9.6
 6
 4
 17.9b
 2
G
 5
 15.6
 10
 15
 20.1b
 8
F1
 3
 10.0
 6
 7
 14.8b
 4
H
 2
 18.7
 4
 16
 23.5
 9
J
 1
 –
 2
 7
 21.2
 4
K 1 – 2 7 20.4 4

aCRF, circulating recombinant forms; DRC, Democratic Republic of Congo
bSignificant difference (distances significance test = t test, frequency of subtypes significance test = Fisher exact test).

Main Article

Page created: January 27, 2011
Page updated: January 27, 2011
Page reviewed: January 27, 2011
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