Recent Incidence of Paragonimus westermani Metacercariae in Freshwater Crayfish, Cambaroides similis, from Two Enzootic Sites in Jeollanam-do, Korea - PubMed (original) (raw)

Recent Incidence of Paragonimus westermani Metacercariae in Freshwater Crayfish, Cambaroides similis, from Two Enzootic Sites in Jeollanam-do, Korea

Jin-Ho Song et al. Korean J Parasitol. 2017 Jun.

Abstract

An epidemiological study was performed to know the recent infection status of Paragonimus westermani metacercariae (PwMc) in freshwater crayfish, Cambaroides similis, from 2 streams in Jeollanam-do, Republic of Korea. Crayfish were collected from creeks in Bogil-do (Island), Wando-gun, and in a creek near Daeheung Temple in Haenam-gun. The infection rate of crayfish with PwMc in Bogil-do was 89.8%, and the metacercarial burden was 37 PwMc per the infected crayfish. Crayfish in a creek near Daeheung Temple were larger and twice heavier than those in Bogil-do. Of them, 96.5% were infected with PwMc. An average of 140 metacercariae was found in the infected crayfish, almost quadruple to those of Bogil-do. There was a strong correlation between the number of PwMc and body weight of the crayfish. These results suggest that P. westermani metacercariae are still prevalent in crayfish of the 2 regions in Jeollanam-do, Korea.

Keywords: Haenam; Paragonimus westermani; Wando; freshwater crayfish; metacercaria.

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Conflict of interest statement

CONFLICT OF INTEREST

We have no conflict of interest related to this study.

Figures

Fig. 1

Fig. 1

(A) Freshwater crayfish (Cambaroides similis) caught in a creek near Daeheung Temple, Haenam-gun, Jeollanam-do, Korea. (B) Paragonimus westermani metacercaria isolated from a crayfish.

Fig. 2

Fig. 2

Plots of the number of Paragonimus westermani metacercariae against the body weight of crayfish. (A) Bogil-do (Island), Wando-gun. (B) Daeheung Temple, Haenam-gun. Straight lines are results of a linear regression (A, _P_=0.47; B, P<0.001).

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