Avian schistosome species in Danish freshwater lakes relation to biotic and abiotic factors
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Avian schistosome species in Danish freshwater lakes relation to biotic and abiotic factors. / Al-Jubury, Azmi; Duan, Yajiao; Kania, Per; Tracz, Eva Susanna; Bygum, Anette; Jørgensen, Louise von Gersdorff; Horák, Petr; Buchmann, Kurt.
In: Journal of Helminthology, Vol. 95, e22, 2021.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Avian schistosome species in Danish freshwater lakes relation to biotic and abiotic factors
AU - Al-Jubury, Azmi
AU - Duan, Yajiao
AU - Kania, Per
AU - Tracz, Eva Susanna
AU - Bygum, Anette
AU - Jørgensen, Louise von Gersdorff
AU - Horák, Petr
AU - Buchmann, Kurt
PY - 2021
Y1 - 2021
N2 - Due to the increased prevalence of human infections with bird schistosome larvae (cercarial dermatitis) associated with bathing in Danish lakes, a nationwide survey of infected intermediate host snails was conducted in 2018–2020. Pulmonate snails (10,225 specimens) were collected from 39 freshwater lakes (in the four major geographic regions in Denmark) and subjected to shedding. Released schistosome cercariae were isolated and identified by polymerase chain reaction and sequencing whereby Trichobilharzia regenti, Trichobilharzia franki, Trichobilharzia szidati and Trichobilharzia anseri were recorded. Infections were primarily determined by biotic factors such as the presence of final host birds and intermediate host snails and water temperature was noted as an important abiotic parameter associated with the infection. No clear connection with other abiotic factors (conductivity, alkalinity, pH, nitrogen, phosphorous) was seen. The widespread occurrence of infected snails, when compared to previous investigations, suggests that climate changes at northern latitudes could be responsible for the increased risk of contracting cercarial dermatitis.
AB - Due to the increased prevalence of human infections with bird schistosome larvae (cercarial dermatitis) associated with bathing in Danish lakes, a nationwide survey of infected intermediate host snails was conducted in 2018–2020. Pulmonate snails (10,225 specimens) were collected from 39 freshwater lakes (in the four major geographic regions in Denmark) and subjected to shedding. Released schistosome cercariae were isolated and identified by polymerase chain reaction and sequencing whereby Trichobilharzia regenti, Trichobilharzia franki, Trichobilharzia szidati and Trichobilharzia anseri were recorded. Infections were primarily determined by biotic factors such as the presence of final host birds and intermediate host snails and water temperature was noted as an important abiotic parameter associated with the infection. No clear connection with other abiotic factors (conductivity, alkalinity, pH, nitrogen, phosphorous) was seen. The widespread occurrence of infected snails, when compared to previous investigations, suggests that climate changes at northern latitudes could be responsible for the increased risk of contracting cercarial dermatitis.
U2 - 10.1017/S0022149X21000122
DO - 10.1017/S0022149X21000122
M3 - Journal article
C2 - 33875029
VL - 95
JO - Journal of Helminthology
JF - Journal of Helminthology
SN - 0022-149X
M1 - e22
ER -
ID: 260191382