Several other Diphyllobothrium species have been reported to infect humans, but less frequently; they include D. pacificum, D. cordatum. PDF | Twenty cases of Dyphillobothrium pacificum (fish tapeworm) infections were prospectively studied to determine whether this tapeworm is. Abstract. Twenty cases of Dyphillobothrium pacificum (fish tapeworm) infections were prospectively studied to determine whether this tapeworm.

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Sections of gravid proglottids containing eggs arrow of Diphyllobothrium sp. A case of Diphyllobothrium latum infection with a brief review of diphyllobothriasis in the Republic of Korea.

The first human infected with Diphyllobothrium hians Diesing, As in all pseudophyllid cestodes, the genital pores open midventrally. Comparison of restriction-fragment-length-polymorphisms of ribosomal Diphylloboothrium between Diphyllobothrium nihonkaiense and D.

WoRMS – World Register of Marine Species – Diphyllobothrium pacificum (Nybelin, )

Elucidation of the role of copepods as first intermediate hosts. At present, they represent the most reliable tool to identify clinical samples of Diphyllobothrium at the species level. A Strobila of D. As an alternative mechanism, competition for available vitamin B12 and intrinsic factor cleavage may occur in the blind loop syndrome in which bacterial overgrowth consumes existing vitamin B12 or during tapeworm infestations, particularly ppacificum.

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An outbreak of diphyllobothriosis in Geneva has recently been reported by Jackson et al. The first record of human infection with Diphyllobothrium cameroni Rausch, Eggs are usually numerous and can be demonstrated without concentration techniques. Life Cycle Immature eggs are passed in feces.

Second Intermediate Host Second intermediate hosts include freshwater, anadromous, or marine fish. A duphyllobothrium case of diphyllobothriasis in Malaysia. Severity of the disease is known to be directly associated dphyllobothrium worm burden and by-products produced by tapeworms Therefore, dehelminthization of the human population does not necessarily eliminate the parasite from concerned areas.


This article has been cited by other articles diphylolbothrium PMC. About 45 human cases of diphyllobothriosis and one case of diplogonoporiasis have also been reported from South Korea 3287 In the early s, diphyllobothriosis was estimated to affect 9 million humans globally, with 5 million in Europe, 4 million in Asia, and the rest in America PCR can be performed on samples of purified eggs, or native fecal samples following sonication of the eggs to release their contents.

In addition, two other species of Diplogonoporusnamely, D.


A diagnosis of megaloblastic anemia was made and the patient received vitamin B12 for seven days, plus oral hypoglycemic drugs glibenclamide for treatment of diabetes.

Note the knob at the abopercular end. Most human infections caused by D. We evaluated a consecutive series of patients infected with D. The incubation period in humans, after which eggs begin to appear in the feces is typically 4—6 weeks, but can vary from as short as 2 weeks to pacivicum long paciicum 2 years. Garcia2 Roman Kuchta1 and Barbara Wicht 3, 4. Diphyllobothrium nihonkaiense seems to be more sensitive to praziquantel than D.

The species named as Taenia lata by C. Eggs appear in the feces 5 to 6 weeks after infection. A key to three species of larval Diphyllobothrium Cobbold, Cestoda: A proliferative zone neck is usually present posterior to the scolex. Recent features of parasites detected from clinical specimens. Better education of all population segments, such as consumers, health professionals, fishermen, and sellers, particularly in the regions under potential risk of infection, is necessary Africa and Australia There are no reliable recent reports on the occurrence of broad fish tapeworms in humans from Africa and Australia.


A case of Diphyllobothrium yonagoense infection. Higher risks for urban populations may also arise because of the incentive for exporters to ship fresh nonfrozen fish by air dihyllobothrium gain a competitive edge in the market 35, The broad tapeworm in Minnesota, with the report of a case of infection acquired in the state.

Side effects are infrequent because it is not absorbed from the gastrointestinal tract. Vitamin B12 deficiency anemia classically known as pernicious anemia usually refers to decreased vitamin B12 levels secondary to a loss of intrinsic factor secretion. Eggs are operculate Fig. The first case of treatment by oral administration of gastrografin resulted in finding the expelled strobila more than 6 m long with the scolex, which was morphologically identical to D. Difilobotriasis humana en la Patagonia, Argentina.

Freshwater Nonsalmonid Fish Most common intermediate hosts, especially of D. Cyclopidae serve as the first intermediate hosts 4897 The occurrence of human intestinal parasites in Finland. Shimane J Med Sci. Nevertheless, these small second intermediate hosts can be eaten by larger predator species, for example troutperchwalleyeand pike.

Theoretically, any point of the life cycle can be attacked.

This human-infecting parasite is therefore included in our review. Plerocercoids, but no human cases, were also recorded in eastern Siberia. Elucidation of transmission to humans through consumption of infected fish.

Because humans do not generally eat undercooked minnows and similar small freshwater fish, ddiphyllobothrium do not represent an important source of infection.