Early changes in quasispecies repertoire in HIV-infected infants : Correlation with disease progression
2000
The evolution of HIV-1 quasispecies in patients during the first year of life was investigated in 10 vertically infected infants, using heteroduplex analysis of the V3-V5 region of env. Four subjects, who showed little viral evolution during the period of the study, had rapid progression of disease and early loss of CD4+ cells. The remaining six subjects, who were slow progressors, evolved new viral variants within 6 months, and in one case by 1 month of age. Of the four patients who were PCR positive at birth, one was infected with multiple HIV-1 variants. These results show that in HIV-infected children, multiple variants may initiate infection and early quasispecies diversification is associated with a favorable clinical outcome.
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