Objective. To investigate the growth, early feeding practices and prev
alence of infections in black infants. Design. Longitudinal study with
prospective documentation of data. Setting. Kalafong Hospital, Pretor
ia. Patients. Term, appropriately grown infants with a positive rapid
plasma reagin test on cord blood were enrolled. Infants who on follow-
up did not have congenital syphilis were studied. Results. At birth th
e mean weight-for-age Z-scores corresponded with those of the National
Center of Health Statistics (NCHS) reference population and increased
during the first 3 months. A fall-off in growth performance in respec
t of weight gain occurred from 3 months and continued until 15 months
when the study was terminated, At 6 and 12 months, 86% and 81% of infa
nts respectively were receiving breast-milk. By 3 months, 78% of infan
ts were receiving a supplementary food. At 9 months, 40% of infants ha
d experienced an infection during the preceding 3 months. During the s
tudy, upper airway infections comprised 74% of all episodes of infecti
on. Conclusions. Compared with the NCHS reference population, black in
fants grow adequately during the first 3 months of life. This is follo
wed by a persistent fall-off in growth performance associated with the
introduction of supplementary food.