- Lack of correlation between maternal antibodies to V3 loop peptides of gp120 and perinatal HIV-1 transmission. The NYC Perinatal HIV Transmission Collaborative Study. Parekh, B.S., Shaffer, N., Pau, C.P., Abrams, E., Thomas, P., Pollack, H., Bamji, M., Kaul, A., Schochetman, G., Rogers, M. AIDS (1991)