[Epidemiological studies on Metagonimus infection along the Hongcheon river, Kangwon province].

The Hongcheon river system flows down through the Hongcheon area of Kangwon-do, and reaches to the Cheongpyeong Dam in Kyonggi-do. Stool specimens from the inhabitants residing along the Hongcheon river basin were examined to detect infection rate of Metagonimus sp., and the intermediate hosts were collected to detect larval stages.

[Epidemiological survey on Metagonimus yokogawai infection in the eastern coast area of Kangwon-province, Korea].

An epidemiological survey on Metagonimus yokogawai infection was performed in the eastern coast area of Kangwon province. Formalin-ether concentration technique and Stoll's dilution egg counting method were employed to figure out the prevalence and intensity of M. yokogawai infection and eating habits of inhabitants with raw freshwater fish.

[Experimental and epidemiological studies on the life cycle of Echinostoma hortense Asada, 1926 (Trematoda: Echinostomatidae)].

Recently there have been some reports on human infections of Echinostoma hortense in Korea. It was found that a few species of freshwater fishes were playing the role of the second intermediate host of E. hortense.

[Echinostoma hortense metacercariae naturally encysted in Odontobutis obscura interrupta (a freshwater fish) and experimental infection to rats].

The metacercariae of an echinostomatid fluke were detected from a freshwater fish, Odontobutis obscura interrupta caught from the Seom river system, Wonseong-gun, Kangwon-do, and experimenally infected into rats to obtain the adult worms for the species identification. A total of 32 metacercariae was detected from 10 fishes (27.8 percent) out of 36 O.

[Two cases of natural human infection by Echinostoma hortense and its second intermediate host in Wonju area].

Two cases of human Echinostoma hortense infection and their probable infection source were identified by praziqantel (Distocide) treatment of the patients and by examining two kinds of fresh water fish which were eaten raw by them. The result of the research can be summarized as follows: The patients, each aged 31 and 30, were residing in the same house in Wonju City, Kangwon Province. The first case was hospitalized due to epidemic hemorrhagic fever (E.

[Rhabditis sp. infected cases in rural school children].

Five cases infected with Rhabditis sp. were detected in a survey to examine the stool specimen from rural primary school children. A large number of the larvae of Rhabditis sp.

[Epidemiological studies on Metagonimus yokogawai infection in Samcheok-gun, Kangwon-do, Korea].

An epidemiological study on Metagonimus yokogawai infection was performed in Samcheok-gun, Kangwon province during the period from November 1983 to October 1984. Formalin-ether concentration technique and Stoll's dilution egg counting method were employed to figure out the prevalence and infection intensity of M. yokogawai infection.

[Epidemiological Studies On Clonorchis Sinensis Infection Along The Nam-River In Gyeongnam Province, Korea].

An epidemiological study on Clonorchis sinensis infection along the Nam-river (total length; 186km) flowing in Gyeongsang-nam-do, southern part of Korea, was carried out. Formalin-ether concentration technique and Stoll's egg counting method were employed to figure out the prevalence of C. sinensis infection.

[Niclosamide In The Treatment Of Tetagonimiasis].

Anthelmintic effect of niclosamide [N-(2-chloro-4-nitrophenyl)-5-chloro-salicylamide)] on Metagonimus infection was carried out to the cases in area of Seomjin-river. The drug, one tablet contains 0.5 g of niclosamide was supplied from Bu-gwang pharmaceutical company in Seoul.

[Epidemiological Study On Metagonimus Yokogawai Infection Along Boseong River In Jeonra Nam Do, Korea].

Prevalence study of Metagonimus yokogawai infection, survey of intermediate hosts of Metagonimus yokogawai and food habits of raw sweetfish among inhabitants along Boseong river (120 km), Jeonra Nam Do (province) were carried out. The results are summarized as follows: 1. Among 360 examined, the egg positive case were 128(35.

[Fates Of Degranulated Mast Cells And Extruded Granules Responded To Homologous Antigen In Rats Infected With Clonorchis sinensis].

Fates of degranulated mast cells by challenge of the homologous antigen to the Clonorchis sinensis infected rats, and the extruded granules were examined by means of light and electron microscopy. The whole experiment was carried out six weeks after the Clonorchis infection and an observation was made at 1, 3, 5, 8, 12 hours after the antigen challenges. The abdomen of the infected rat was cut open by 2 centimeters and the antigen was directly inoculated to mesentery, then again sutured.

[Flea fauna of rodents in coastal region of Korea Addendum:Insecticide susceptibility test of Xenopsylla cheopis].

A survey on rats and rat-fleas was performed in costal area of Korea during 1972; Inchon, Kunsan, Yosu, Busan and other areas. The number of the caught rats was 1,448. Total number of collected fleas was 2,480.

Experimental Studies Of 1, 4-Bis-Trichlormethyl-Benzol On The Infection Of Clonorchis Sinensis(I).

The efficacy and toxicity of 1, 4-Bis-trichlor-methyl-benzol were examined in the animal infections(rat, rabbit and mouse) of Clonorchis sinensis. 1)The effective dosages to kill the worm in bile ducts were 1 x 150 mg/kg in rat and 5 x 150 mg/kg in rabbit. 2)During 48 to 72 hours after the administration of the drug, the inactive posteriorly swollen worms and variously degenerated worms were observed from liver ducts, gallbladder and intestine of the experimental animals.

A new second intermediat host of genus Paragonimus.

1. Metacercariae were found from 6 samples among 4,382 Parlemon nipponensis which were caught at Podu, Kohung, Korea. 2.