1. World Health Organization (2001) Schistosomiasis and soil-transmitted infections. 54th World Health Assembly, agenda item 13.3 resolution WHA 54.19.
2. Multiparasite communities in animals and humans: frequency, structure and pathogenic significance;TN Petney;Int J Parasitol,1998
3. World Health Organization (2002) Prevention and control of schistosomiasis and soil-transmitted helminthiasis: first report of the joint WHO expert committees. WHO Technical Report Series. Geneva: World Health Organization.
4. Epidemiology of poly-parasitism I. Occurrence, frequency and distribution of multiple infections in rural communities in Chad, Peru, Afghanistan and Zaire;AA Buck;Trop Med Parasitol,1978
5. A prospective study of Plasmodium falciparum multiplicity of infection and morbidity in Tanzanian children;L Henning;Trans R Soc Trop Med Hyg,2004