Protection against Human Immunodeficiency Virus Type 1 Infection in Persons with Repeated Exposure: Evidence for T Cell Immunity in the Absence of Inherited CCR5 Coreceptor Defects

Abstract excerpt

It has been hypothesized that protection against human immunodeficiency virus (HIV)-1 infection may result from either acquired host immunity, inheritance of a dysfunctional CCR5 HIV-1 coreceptor, or a low or attenuated virus inoculum. Thirty-seven HIV-1-uninfected persons engaging in repeated high-risk sexual activity with an HIV-1-infected partner were prospectively studied to determine the contribution of...

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