Human thelaziasis in Bangladesh.

Very few cases of Human Thelaziasis are reported worldwide. This is the first case of its kind from Bangladesh. A 58 years old man was admitted to Ophthalmology department of Mymensingh Medical College Hospital, Mymensingh, with itching, redness, foreign body sensation, lacrimation & filamentary discharge from right eye (R/E). He had visual acuity <6/60, conjunctival congestion & advanced bi-headed pterygium of R/E. After exposure of R/E ball with universal eye's speculum, a thin white nematode was found into the right lower conjunctival fornix. It was taken out by a plain forceps, placed into a bottle containing Hartman's solution & immediately sent to Microbiology department of Mymensingh Medical College for proper identification. Subsequently with the joint collaboration & detailed examination by the Parasitology department of Bangladesh Agricultural University (BAU), Mymensingh, the nematode was identified as an adult Thelazia callipaeda worm.

[Gnathostomiasis: an emerging parasitic disease?]. / La gnathostomose, une parasitose émergente?

INTRODUCTION: Human gnathostomiasis is a parasitic disease caused by the ingestion of foods contaminated with the larvae of various species of Gnathostoma. This zoonosis is currently endemic in Asia and Central America. CASE REPORT: A 46-year-old French woman resident in Vietnam presented with intermittent pruritic swelling of the hand, present for one year, coupled with eosinophilia. The patient's history and serological testing confirmed the suspected diagnosis of gnathostomiasis. A favorable outcome was attained on treatment with albendazole. DISCUSSION: This case, together with several others recently reported in France and Europe, underlines the need to inform travelers and migrants to endemic regions of the risks associated with eating raw or marinated fish.

A human case of gnathostomiasis nipponica confirmed indirectly by finding infective larvae in leftover largemouth bass meat.

A human case of creeping eruption due to Gnathostoma nipponicum was confirmed indirectly by finding infective advanced third-stage larvae in leftover largemouth bass meat. This is the first report indicating that the largemouth bass (Micropterus salmoides) serves as a source of G. nipponicum infection in humans.

Creeping eruption caused by a larva of the suborder Spirurina type X.

We report a case of creeping eruption caused by a larva of the suborder Spirurina type X, which developed in a 46-year-old Japanese male. The patient ate small raw squids (Watasenia scintillans) 5 days before the onset of symptoms. On examination, an approximately 25-cm-long serpiginous red track with vesicles was observed from the right to the upper left side of the abdomen of the patient. Histological examination revealed the transverse section of a larval worm in the upper to middle dermis.The patient serum was positive only for the antibody against larvae of the suborder Spirurina type X in ELISA, and negative for all other anti-parasite antibodies. Because a considerable number of people are fond of eating raw or nearly-raw fish and shellfish in Japan, opportunities for developing creeping eruption cause by parasites present in raw fish and shellfish are relatively high.

Two cases of imported gnathostomiasis in Spanish women.

Reported here are two new cases of imported cutaneous gnathostomiasis that occurred in two Spanish women. The first patient acquired the helminth infection while travelling in Southeast Asia and the second in Mexico. Although the highest prevalence of gnathostomiasis infection is in Southeast Asia, the disease is now an emerging public health problem in some countries of Latin America. The cases reported here demonstrate the increasing frequency with which human gnathostomiasis is being diagnosed in nonendemic countries as a result of more extensive international travel and migration.

Abbreviata terrapenis (Nematoda: Physalopteridae): an accidental parasite of the banded rock rattlesnake (Crotalus lepidus klauberi).

The nematode, Abbreviata terrapenis (Physalopteridae) was found in 16 (6%) of 267 banded rock rattlesnakes (Crotalus lepidus klauberi) from Arizona and New Mexico. Abbreviata terrapenis in C. lepidus represents an accidental parasite in that "infection" was acquired by the ingestion of lizard prey. Feeding captive snakes on wild-caught lizards poses a risk of introducing nematodes to the snakes.

Gnathostomosis, an emerging foodborne zoonotic disease in Acapulco, Mexico.

Between 1993 and 1997, 98 gnathostomosis cases were clinically identified in Acapulco, Mexico. Intermittent cutaneous migratory swellings were the commonest manifestation. Larvae were identified in 26 cases, while in 72, final diagnosis was made on the basis of epidemiologic data, food habits, and positive enzyme-linked immunosorbent assay and Western blot results.

Short report: gnathostomiasis in Mexico.

Gnathostomiasis is an important food-borne parasitic zoonosis that is endemic mainly in Asian countries where some people prefer to eat raw freshwater fish. In North America, the first recorded case of gnathostomiasis was in Mexico in 1970, and the numbers of gnathostomiasis patients in Mexico seems to be increasing dramatically with time. However, the epidemiology of this disease in Mexico has never been described in detail. Here we review the current status of gnathostomiasis in Mexico.

Thelazia californiensis conjunctival infestation.

There are few reports of Thelazia californiensis infestation in humans in the literature. The authors report the clinical and histopathologic features of two patients who presented with symptoms of a mild unilateral chronic conjunctivitis from infestation by this parasite. In each case, the symptoms resolved immediately after removal of the worms. These are the first two patients from the Rocky Mountain area to be described with an infection from this particular worm. T. californiensis should be included in the differential diagnosis of patients with chronic conjunctivitis following hiking or camping in the mountains or back-country.

Human infection with Gongylonema pulchrum: a case report.

A 43 year old woman developed a painful tumor at the left buccal mucosa. Following local anti-inflammatory treatment a 35 mm long, living female adult worm of Gongylonema pulchrum was extracted from the affected side. No further treatment was needed and recovery was complete 5 days after extraction. Infection had occurred possibly 6 weeks before in Hungary with ingestion of contaminated water from an open draw well. Although commonly occurring as parasitic infection of domestic cattle and other vertebrates, gongylonemiasis is very rare in humans. Only 48 cases have been described in the literature since 1864. Life cycle and pathology of G. pulchrum are discussed.

Parasitic skin diseases.

In this discussion of parasitic skin diseases of horses, details on life cycles are given to aid the understanding and development of control strategies.

Pathogenesis of helminths in equines.

This review summarizes information on the clinical signs, gross and microscopic lesions associated with nematode and cestode infections and discusses the development of these conditions in the equine host.