@article{Müller_Gall_Beyleveld_Gerber_Pühse_du Randt_Steinmann_Zondie_Walter_Utzinger_2017, title={Shrinking risk profiles after deworming of children in Port Elizabeth, South Africa, with special reference to Ascaris lumbricoides and Trichuris trichiura}, volume={12}, url={https://www.geospatialhealth.net/gh/article/view/601}, DOI={10.4081/gh.2017.601}, abstractNote={Risk maps facilitate discussion among different stakeholders and provide a tool for spatial targeting of health interventions. We present maps documenting shrinking risk profiles after deworming with respect to soil-transmitted helminthiasis among schoolchildren from disadvantaged neighbourhoods in Port Elizabeth, South Africa. Children were examined for soil-transmitted helminth infections using duplicate Kato-Katz thick smears in March 2015, October 2015 and May 2016, and subsequently treated with albendazole after each survey. The mean infection intensities for <em>Ascaris lumbricoides</em> were 9,554 eggs per gram of stool (EPG) in March 2015, 4,317 EPG in October 2015 and 1,684 EPG in March 2016. The corresponding figures for <em>Trichuris trichiura</em> were 664 EPG, 331 EPG and 87 EPG. Repeated deworming shrank the risk of soil-transmitted helminthiasis, but should be complemented by other public health measures.}, number={2}, journal={Geospatial Health}, author={Müller, Ivan and Gall, Stefanie and Beyleveld, Lindsey and Gerber, Markus and Pühse, Uwe and du Randt, Rosa and Steinmann, Peter and Zondie, Leyli and Walter, Cheryl and Utzinger, Jürg}, year={2017}, month={Nov.} }