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Current Opinion in HIV & AIDS:
doi: 10.1097/COH.0b013e328351b9fb
CO-INFECTION OF POVERTY RELATED DISEASES WITH WORMS: Edited by Alison Elliott and Maria Yazdanbakhsh

Advances in our understanding of the epidemiology of Plasmodium and schistosome infection: informing coinfection studies

Wilson, Shona; Dunne, David W.

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Abstract

Purpose of review: Schistosomes and Plasmodium parasites have complex patterns of transmission, leading to differing dynamics of host–parasite interactions across study sites and a bias of studying differing age groups in monoinfection studies. Combined, these infections lead to difficulties in conducting and interpreting human coinfection studies.

Recent findings: Interactions between the two parasites may affect morbidity associated with either infection; both by influencing mechanisms directly associated with the development of those morbidities and by influencing mechanisms associated with resistance or susceptibility to the other infection. However, conflicting results are reported due to inherent difficulties in studying coinfections. More studies with stringent designs are required to clarify interactions between the two parasites. Recent monoinfection studies indicate that further coinfection studies may need to have a wider age range than previously studied. These studies also need to harness new techniques, both for data collection and analysis that are being developed for modern epidemiological studies. These techniques will allow an essential multidisciplinary approach to be taken.

Summary: Coinfection with Plasmodium and schistosome infection has implications for the health of children of all ages in sub-Saharan Africa. It is important to gain further understanding of the interactions between the two parasites in all age groups.

© 2012 Lippincott Williams & Wilkins, Inc.

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