Comments on separate articles by R.J. Biggar, M. Janes et al. and L.A. Kalish, K. McIntosh et al, concerning HIV levels in African infants and its association with the rate of disease progression, published a 1999 issue of the 'Journal of Infectious Diseases.' Generation of cytokine responses via exposure to helminthic antigens in utero; Progression of AIDS among African children; Markers for response to helminthiasis.