Schistosomiasis in Lake Malaŵi villages

Henry Madsen, Paul Bloch, Peter Makaula, Happy Phiri, Peter Furu, Jay Richard Stauffer, Jr.

Research output: Contribution to journalReview article

22 Citations (Scopus)

Abstract

Historically, open shorelines of Lake Malaŵi were free from schistosome, Schistosoma haematobium, transmission, but this changed in the mid-1980s, possibly as a result of over-fishing reducing density of molluscivore fishes. Very little information is available on schistosome infections among people in lake-shore communities and therefore we decided to summarise data collected from 1998 to 2007. Detailed knowledge of the transmission patterns is essential to design a holistic approach to schistosomiasis control involving the public health, fisheries and tourism sectors. On Nankumba Peninsula, in the southern part of the lake, inhabitants of villages located along the shores of Lake Malaŵi have higher prevalence of S. haematobium infection than those living in inland villages. Overall prevalence (all age classes combined) of urinary schistosomiasis in 1998/1999 ranged from 10.2% to 26.4% in inland villages and from 21.0% to 72.7% in lakeshore villages; for school children prevalence of infection ranged from 15.3% to 57.1% in inland schools and from 56.2% to 94.0% in lakeshore schools. Inhabitants on the islands, Chizumulu and Likoma, also have lower prevalence of infection than those living in lakeshore villages on Nankumba Peninsula. This increased prevalence in lakeshore villages is not necessarily linked to transmission taking place in the lake itself, but could also be due to the presence of more numerous typical inland transmission sites (e.g., streams, ponds) being close to the lake. Temporal data witness of intense transmission in some lakeshore villages with 30-40% of children cleared from infection becoming reinfected 12 months later (also lakeshore village). The level of S. mansoni infection is low in the lakeshore communities. Findings are discussed in relation to fishing in the lake.

Original languageEnglish (US)
Pages (from-to)163-176
Number of pages14
JournalEcoHealth
Volume8
Issue number2
DOIs
StatePublished - Jun 1 2011

Fingerprint

schistosomiasis
Schistosomiasis
Lakes
village
lake
Infection
Schistosoma haematobium
Schistosomiasis haematobia
Fisheries
shore (nonmarine)
holistic approach
overfishing
Islands
age class
Fishes
Public Health
infection
public health
shoreline
fishing

All Science Journal Classification (ASJC) codes

  • Ecology
  • Health, Toxicology and Mutagenesis

Cite this

Madsen, H., Bloch, P., Makaula, P., Phiri, H., Furu, P., & Stauffer, Jr., J. R. (2011). Schistosomiasis in Lake Malaŵi villages. EcoHealth, 8(2), 163-176. https://doi.org/10.1007/s10393-011-0687-9
Madsen, Henry ; Bloch, Paul ; Makaula, Peter ; Phiri, Happy ; Furu, Peter ; Stauffer, Jr., Jay Richard. / Schistosomiasis in Lake Malaŵi villages. In: EcoHealth. 2011 ; Vol. 8, No. 2. pp. 163-176.
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Madsen, H, Bloch, P, Makaula, P, Phiri, H, Furu, P & Stauffer, Jr., JR 2011, 'Schistosomiasis in Lake Malaŵi villages', EcoHealth, vol. 8, no. 2, pp. 163-176. https://doi.org/10.1007/s10393-011-0687-9

Schistosomiasis in Lake Malaŵi villages. / Madsen, Henry; Bloch, Paul; Makaula, Peter; Phiri, Happy; Furu, Peter; Stauffer, Jr., Jay Richard.

In: EcoHealth, Vol. 8, No. 2, 01.06.2011, p. 163-176.

Research output: Contribution to journalReview article

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Madsen H, Bloch P, Makaula P, Phiri H, Furu P, Stauffer, Jr. JR. Schistosomiasis in Lake Malaŵi villages. EcoHealth. 2011 Jun 1;8(2):163-176. https://doi.org/10.1007/s10393-011-0687-9