The present study was undertaken to evaluate the prevalence rate of Taenia spp. infection and distribution of taeniasis caused by T. solium among Koreans in several localities in Korea during the period from 1977 to 1980. A total of 1,946 stool specimens collected from students and inhabitants of Chungcheong Bug Do and Gyeongsang Nam Do were examined by cellophane thick smear method. Among them, 40 persons were detected as Taenia egg positive cases. The overall positive rate of Taenia spp. shows 2.1 percent. The prevalence rate of male (2.3 percent) is relatively higher than that of female (1.4 percent). In order to observe the distribution of Taenia solium infection, the whole worms or a part of proglottids of Taenia spp. were collected from the stools of egg positive cases by normal defecation or anthelmintic treatment. For the species identification, expelled proglottids were examined microscopically by the number of branches of the uterus, presence of a vaginal sphincter or the accessory ovarian lobe etc. Among 199 egg detected cases in this study 59 (39.1 percent) out of 151 cases in Seoul, 12(40.0 percent) of 30 cases in Gyeongsang Nam Do and 2 (25.0 percent) from 8 taeniasis cases in Cheju Do were infected with T. solium. But none of T. solium infection was found from 10 egg positive cases in Chungcheong Bug Do. As a whole, the composition of species shows 36.7 per cent of T. solium infection and 55.8 percent of T. saginata infection, and in 7.5 per cent the species were not identified.
parasitology-helminth-trematoda ; Taenia spp. ; Taenia solium ; Taenia saginata

Ten cases infected with Taenia saginata were treated with Bithionol, 2, 2' thiobis (4,6-dichlorophenol) which is well known as an excellent anthelminthhic against paragonimiasis and their follow-up studies were carried on within 3 to 12 months after treatment. Bithionol, 50 mg dose per kg of body weight was divided into two equal dose and administered orally in 30 minutes intervals. Three hours later, this was followed with a sodium sulfate or magnesium sulfate purge. The strobilas without scolices were found in the stools after the medication and the follow-up studies have shown the complete deworming in all cases. It is well tolerated, toxic effects being uncommon and when present, limited to mild gastro-intestinal disturbances.
parasitology ; helminth ; cestoda ; Taenia saginata ; chemotherapy ; bithionol

A complete but abnormal form of Taenia worm was obtained from an 18-year-old male student in Cheju Island, Korea, which has been known as a heavy endemic area of Taenia saginata and few of T. solium. There was an apical hookless eminence in the scolex, longitudinal white line along the middle portion of entire strobila, double genital pores and several lateral buddings from the strobila. It was considered an abnormal form of Taenia species, probably T. saginata.
parasitology-helminth-cestoda-Taenia saginata ; Taenia sp. ; case report

Previous paleoparasitological studies of Joseon specimens established that the prevalence of Taenia infection was not much different from that of the early 20th century Korean population. As many of taeniases originally diagnosed as Taenia saginata in South Korea were revealed to be actually Taenia asiatica, which share a common intermediate host with T. solium (the pig), Joseon people must have ingested raw pork frequently. However, the current examination of extant Joseon documents revealed that the population ate significant amounts of beef even if the beef ban was enforced; and pork was not consumed as much as we thought. Considering the meat consumption pattern at that time, Joseon people should have been infected by T. saginata more frequently than T. asiatica. This may suggest a low prevalence of T. saginata metacestodes in cattle compared to that of T. asiatica metacestodes in pigs, possibly due to the traditional way of rearing pigs (using human feces). This letter gives us a chance to reconsider the existing preconception about parasitic infections in Korean history though we are still hard to accurately estimate the historical patterns of taeniases at this stage.
Animals ; Cattle ; Humans ; Korea* ; Meat* ; Population ; Prevalence ; Red Meat ; Swine ; Taenia saginata ; Taenia solium ; Taenia* ; Taeniasis*

A total of 2,026 leprosy patients of the National Sorokdo Hospital was examined their intestinal parasites by cellophane thick smear method in January 1983. The egg positive cases of Taenia spp. were treated with bithionol and the segments of Taenia were collected for species identification. The results were as follows: Total egg positive rate of any kind helminth was 78.2 percent and cumulative total was 85.2 percent. The egg positive rate for each helminth was as follow; Taenia spp. 3.4 percent, Ascaris lumbricoides 4.5 percent, Trichuris trichiura 72.l percent, Clonorchis sinensis 2.8 percent and other 0.05 percent. A total of 66 Taenia egg positive cases was treated; out of them proglottids of Taenia were collected from 26 cases. All of the collected worms were identified as T. saginata. The results revealed significantly high egg positive rate of T. trichiura. However, A. lumbricoides was found to be controlled considerably by repeated chemotherapy during past 3 years. If chemotherapeutic agent is replaced with oxantel-pyrantel tablet, better result is expected. No clue was found for prevalence of T. solium from both human and the pig in the island.
parasitology-helmith-nematoda-trematoda-cestoda ; trichuriasis ; Trichuris trichiura ; Taenia spp. ; Ascaris lumbricoides ; Clonorchis sinensis ; taeniasis ; ascariasis ; clonorchiasis ; Taenia saginata ; epidemiology

A 77-year old man living in Kyunggi-Do, Korea was surgically treated at Seoul National University Hospital on April 1981, because of acute abdomen. At laparotomy, a 1.77m long adult Taenia saginata was found both in gallbladder and in common bile duct to cause acute gangrenous cholecystitis. The relevant literature were reviewed and possible mechanisms of the disease were discussed.
parasitology-helminth-cestoda ; Taenia saginata-taeniasis ; case report ; gallbladder ; common bile duct ; acute abdomen ; laparatomy

Animals ; Duodenal Diseases ; diagnosis ; Duodenum ; parasitology ; pathology ; Humans ; Intestinal Perforation ; diagnosis ; Male ; Taenia saginata ; pathogenicity

Two cases of human infection by Stellantchasmus falcatus (Heterophyidae) were identified by collection of adult worms during the treatment of some tapeworm infections in Korea. The cases were 24 (Case 1) and 55-year old (Case 2) males residing in Seoul. The Case 1 had gastrointestinal troubles such as diarrhea and abdominal pain, and heart problems such as palpitation and arrhythmia, revealing the eggs of Diphyllobothrium latum in the feces. The Case 2 complained indigestion and discharge of tapeworm (Taenia saginata) segments. Praziquantel at the dose of 15-20 mg/kg body weight and 30 g magnesium salt were given to them for treatment of the tapeworm infection and the discharged strobilae were identified. However, concommitantly with the tapeworms, 188 and 5 specimens of S. falcatus were collected from Case 1 and Case 2 respectively through stereomicroscopy of the diarrheal stools. The Case 1 was infected also with 3 other kinds of heterophyid flukes. They said to have eaten raw brackish water fish such as mullets which are considered to be the source of heterophyid fluke infections.
parasitology-helminth-trematoda ; Stellantchasmus falcatus ; case report ; Taenia saginata ; Diphyllobothrium latum ; praziquantel

In recent years, the taeniasis has been rarely reported in the Republic of Korea (Korea). But in this study, we intend to report 4 taeniasis cases caused by Taenia saginata during a 5-month period (February to June 2018) at a unversity hospital in Gwangju, Korea. Worm samples (proglottids) discharged from all cases were identified by phenotypic and molecular diagnostics. Mitochondrial cytochrome c oxidase subunit I sequences showed 99.4–99.9% identity with T. saginata but, differed by 4% from T. asiatica and by 7% from T. multiceps, respectively. We found that tapeworms in 2 cases (Cases 2 and 3) yielded exactly the same sequences between them, which differed from those in Cases 1 and 4, suggesting intra-species variation in tapeworms. These taeniasis cases by T. saginata infection in this study, which occurred within a limited time period and region, suggest the possibility of a mini-outbreak. This study highlights the need for further epidemiological investigation of potentially overlooked cases of T. saginata infection in Korea.
Cestoda ; Electron Transport Complex IV ; Gwangju ; Korea ; Pathology, Molecular ; Republic of Korea ; Taenia saginata ; Taeniasis

The effects of various digestive enzymes, fresh biles, and bile acids on the hatching and activation of the eggs of Taenia saginata, T. pisiformis, T. solium, Hymenolepis nana, and Moniezia expansa have been investigated. On the basis of the results of the present study author attempted to elucidate the specificity of host-parasite relationships in the tapeworm infections. The results were summarized as follows: In case of the ova of T. saginata, pretreatment with artificial gastric juice before contact of intestinal juice is required to bring the disintegration of the embryophore and activation of the embryo. However the ova of T. solium and T. pisiformis may be disintegrated and activated directly into the artificial intestinal juice without the above pretreatment. Among the digestive enzymes applied in this experiment, trypsin was found most effective on the hatching. No hatching of the ova of H. nana and M. expansa was observed in the above artificial hatching-activating solutions. The fresh biles and bile salts were more effective on the hatching and activation of Taeniid ova than sodium taurocholate and sodium deoxycholate. It is turned out that the digestive enzymes or bile acids in the intermediate hosts may, not apparently be essential factor of determining the specificity of host-parasite relationships.
parasitology-helminth-cestoda ; Taenia saginata ; Taenia pisiformis ; Taenia solium ; Hymenolepis nana ; Moniezia expansa ; egg hatching ; host-parasite relationship ; trypsin ; artificial intestinal juice