Publications

hookworm (necator americanus) transmission in inland areas of sandy soils in kwazulu-natal, south africa.	this study extended the association between hookworm transmission in kwazulu-natal and the sandy coastal plain by investigating the parasite's occurrence in isolated areas of sandy soils further inland. a school-based prevalence survey was carried out in selected inland sandy areas and in surrounding areas dominated by clay soils within a narrow altitudinal range of between 500 and 700 m to reduce the effect of altitude on climate-related factors (rainfall and temperature). sandy areas situated ...	2004	15078265
the effect of soil type and climate on hookworm (necator americanus) distribution in kwazulu-natal, south africa.	we investigated environmental factors influencing the distribution of hookworm infection in kwazulu-natal, south africa. prevalence data were sourced from previous studies and additional surveys carried out to supplement the database. when geo-referenced the data revealed that higher prevalences are limited to areas below 150 m above sea level, and low prevalences to areas above this altitude. using univariate analysis we investigated the differences in environmental factors in the two areas. th ...	2003	12869093
the distribution of helminth infections along the coastal plain of kwazulu-natal province, south africa.	the results of a previous study indicated that, in the province of kwazulu-natal, south africa, necator americanus and strongyloides stercoralis were endemic to the coastal lowlands only. the prevalences of these helminths, as well as those of trichuris trichiura and ascaris lumbricoides, have now been investigated along a 1000-km-long transect through the coastal plain, at altitudes of < 300 m, from the mozambique border (26 degrees 57's) to the border with eastern cape province (30 degrees 53' ...	1999	10715680
the distribution of common intestinal nematodes along an altitudinal transect in kwazulu-natal, south africa.	in order to study the effect of climate and topography on the distribution of common, intestinal nematodes in schoolchildren, changes in prevalence were investigated along an altitudinal transect from approximately 50 m above sea level (asl), near the coast, to approximately 1700 m asl, in the foothills of the drakensberg mountains, kwazulu-natal, south africa. these changes were related to several permutations of temperature, rainfall and evaporation, using univariate and multiple regression an ...	1996	8762408
targeted chemotherapy for parasite infestations in rural black preschool children.	to investigate whether targeted chemotherapy can reduce parasite prevalence rates in rural black preschool children.	1995	8545746