Introgression in Lake Malaŵi: increasing the threat of human urogenital schistosomiasis?
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Introgression in Lake Malaŵi : increasing the threat of human urogenital schistosomiasis? / Stauffer, Jay R.; Madsen, Henry; Rollinson, David.
I: EcoHealth, Bind 11, Nr. 2, 2014, s. 251-254.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Introgression in Lake Malaŵi
T2 - increasing the threat of human urogenital schistosomiasis?
AU - Stauffer, Jay R.
AU - Madsen, Henry
AU - Rollinson, David
PY - 2014
Y1 - 2014
N2 - For the last 15 years, we have studied the relationships among cichlid snail-eating fishes, intermediate snail-host density, and the prevalence of human infection of Schistosoma haematobium in Lake Malaŵi and concluded that the increase of human infection is correlated with the decrease in snail-eating fishes in the shallow waters of the lake. We postulated that a strain of S. haematobium from other parts of Africa, which was introduced into the Cape Maclear region of Lake Malaŵi by tourists, was compatible with Bulinus nyassanus-which is a close relative of B. truncatus, and interbred with the indigenous strain of S. haematobium, which ultimately produced via introgression a strain that can use both B. globosus and B. nyassanus as intermediate hosts. This actively evolving situation involving intermediate snail-host switching and decline of Trematocranus placodon, a natural cichlid snail predator, will impact on transmission of urogenital schistosomiasis within the local communities and on tourists who visit Lake Malaŵi.
AB - For the last 15 years, we have studied the relationships among cichlid snail-eating fishes, intermediate snail-host density, and the prevalence of human infection of Schistosoma haematobium in Lake Malaŵi and concluded that the increase of human infection is correlated with the decrease in snail-eating fishes in the shallow waters of the lake. We postulated that a strain of S. haematobium from other parts of Africa, which was introduced into the Cape Maclear region of Lake Malaŵi by tourists, was compatible with Bulinus nyassanus-which is a close relative of B. truncatus, and interbred with the indigenous strain of S. haematobium, which ultimately produced via introgression a strain that can use both B. globosus and B. nyassanus as intermediate hosts. This actively evolving situation involving intermediate snail-host switching and decline of Trematocranus placodon, a natural cichlid snail predator, will impact on transmission of urogenital schistosomiasis within the local communities and on tourists who visit Lake Malaŵi.
U2 - 10.1007/s10393-013-0882-y
DO - 10.1007/s10393-013-0882-y
M3 - Journal article
C2 - 24136387
VL - 11
SP - 251
EP - 254
JO - EcoHealth
JF - EcoHealth
SN - 1612-9202
IS - 2
ER -
ID: 66980579