To the Editor: The study by Friedland and colleagues (Feb. 6 issue)1 of intrahousehold transmission of human T-cell lymphotropic virus Type III/lymphadenopathy-associated virus (HTLV-III/LAV) is a very useful addition to the small amount of systematically obtained evidence available. We agree with their conclusion that nonsexual household contacts are at minimum risk of infection, but think it is premature to conclude that there is no risk. Longer intervals of exposure than those observed may pose some hazard. In their discussion, Friedland et al. suggested that hepatitis B virus (HBV) spreads horizontally among nonsexual household contacts but that HTLV-III/LAV does not. As.
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