Aggregation in schistosomiasis: comparison of the relationships between prevalence and intensity in different endemic areas

HL Guyatt; T Smith; B Gryseels; C Lengeler; H Mshinda; S Siziya; B Salanave; N Mohome; J Makwala; KP Ngimbi; M Tanner

Aggregation in schistosomiasis: comparison of the relationships between prevalence and intensity in different endemic areas

HL Guyatt, T Smith, B Gryseels, C Lengeler, H Mshinda, S Siziya, B Salanave, N Mohome, J Makwala, KP Ngimbi, M Tanner

Institute of Tropical Medicine

Research output: Contribution to journal › A1: Web of Science-article › peer-review

Abstract

The patterns of aggregation in schistosome egg counts in different endemic areas in Africa (data sets were obtained from Burundi, Cameroon, Tanzania, Zambia and Zaire) were investigated. The analysis demonstrated that the degree of parasite aggregation, for both Schistosoma mansoni and S. haematobium, differed amongst the different study localities. This is thought probably due to area-specific differences in host exposure and immunity. This implies that for these schistosome species, it is not possible to predict egg count distributions or morbidity levels from prevalence data alone

Original language	English
Journal	Parasitology
Volume	109
Pages (from-to)	45-55
ISSN	0031-1820
Publication status	Published - 1994

Keywords

B780-tropical-medicine
Helminthic diseases
Schistosomiasis
Schistosoma mansoni
Schistosoma haematobium
Epidemiology
Prevalence
Infection intensity
Parasite egg count
Tanzania
Africa-East
Zambia
Africa-Southern
Cameroon
Congo-Kinshasa
Africa-Central

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Cite this

@article{54bddc6de57c40418929a072a4e7b39b,

title = "Aggregation in schistosomiasis: comparison of the relationships between prevalence and intensity in different endemic areas",

abstract = "The patterns of aggregation in schistosome egg counts in different endemic areas in Africa (data sets were obtained from Burundi, Cameroon, Tanzania, Zambia and Zaire) were investigated. The analysis demonstrated that the degree of parasite aggregation, for both Schistosoma mansoni and S. haematobium, differed amongst the different study localities. This is thought probably due to area-specific differences in host exposure and immunity. This implies that for these schistosome species, it is not possible to predict egg count distributions or morbidity levels from prevalence data alone",

keywords = "B780-tropical-medicine, Helminthic diseases, Schistosomiasis, Schistosoma mansoni, Schistosoma haematobium, Epidemiology, Prevalence, Infection intensity, Parasite egg count, Tanzania, Africa-East, Zambia, Africa-Southern, Cameroon, Congo-Kinshasa, Africa-Central",

author = "HL Guyatt and T Smith and B Gryseels and C Lengeler and H Mshinda and S Siziya and B Salanave and N Mohome and J Makwala and KP Ngimbi and M Tanner",

year = "1994",

language = "English",

volume = "109",

pages = "45--55",

journal = "Parasitology",

issn = "0031-1820",

publisher = "Cambridge University Press",

}

TY - JOUR

T1 - Aggregation in schistosomiasis: comparison of the relationships between prevalence and intensity in different endemic areas

AU - Guyatt, HL

AU - Smith, T

AU - Gryseels, B

AU - Lengeler, C

AU - Mshinda, H

AU - Siziya, S

AU - Salanave, B

AU - Mohome, N

AU - Makwala, J

AU - Ngimbi, KP

AU - Tanner, M

PY - 1994

Y1 - 1994

N2 - The patterns of aggregation in schistosome egg counts in different endemic areas in Africa (data sets were obtained from Burundi, Cameroon, Tanzania, Zambia and Zaire) were investigated. The analysis demonstrated that the degree of parasite aggregation, for both Schistosoma mansoni and S. haematobium, differed amongst the different study localities. This is thought probably due to area-specific differences in host exposure and immunity. This implies that for these schistosome species, it is not possible to predict egg count distributions or morbidity levels from prevalence data alone

AB - The patterns of aggregation in schistosome egg counts in different endemic areas in Africa (data sets were obtained from Burundi, Cameroon, Tanzania, Zambia and Zaire) were investigated. The analysis demonstrated that the degree of parasite aggregation, for both Schistosoma mansoni and S. haematobium, differed amongst the different study localities. This is thought probably due to area-specific differences in host exposure and immunity. This implies that for these schistosome species, it is not possible to predict egg count distributions or morbidity levels from prevalence data alone

KW - B780-tropical-medicine

KW - Helminthic diseases

KW - Schistosomiasis

KW - Schistosoma mansoni

KW - Schistosoma haematobium

KW - Epidemiology

KW - Prevalence

KW - Infection intensity

KW - Parasite egg count

KW - Tanzania

KW - Africa-East

KW - Zambia

KW - Africa-Southern

KW - Cameroon

KW - Congo-Kinshasa

KW - Africa-Central

M3 - A1: Web of Science-article

SN - 0031-1820

VL - 109

SP - 45

EP - 55

JO - Parasitology

JF - Parasitology

ER -

Aggregation in schistosomiasis: comparison of the relationships between prevalence and intensity in different endemic areas

Abstract

Keywords

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