Successful Resolution of Recurrent Vaginal Pinworm Infection With Intermittent Albendazole Administration.

We describe the case of a 7-year-old girl with repeated vaginal Enterobius vermicularis infection, never detected as a digestive tract infection. Two-dose pyrantel pamoate or 2-dose albendazole could not suppress recurrence. Finally, 3-dose albendazole after 2-week intervals was successful in preventing relapse.

Assessment of methods of destruction of Syphacia muris eggs.

An investigation was performed to identify methods suitable for decontamination of equipment being transferred from a facility contaminated with Syphacia muris to a new facility. Perianal samples were taken on clear sticky tape from rats known to be infected with S. muris. Tapes and attached worm eggs were treated with ethylene oxide, formaldehyde fumigation, potassium peroxysulphate, chlorine dioxide and didecyl di-methyl ammonium chloride, chlorine dioxide, alcohol/chlorhexidine, 100 degrees C dry heat for 30 min, ultraviolet light (UV), or left for 4 weeks at room temperature. The subsequent viability of the eggs was compared to untreated control samples. Heat and ethylene oxide produced a 100% kill rate of S. muris eggs. Formaldehyde gas and chlorine dioxide treatments showed marked effectiveness, with the number of eggs killed at 94% and 96%, respectively, while the other agents showed less efficacy (36-78% eggs killed). The percentage of eggs not hatching in the controls was 21%. Since so few agents were effective against S. muris eggs, care should be taken when choosing a method for decontaminating a facility.

Evaluation of coinfection with pinworms (Aspiculuris tetraptera, Dentostomella translucida, and Syphacia obvelata) in gerbils and mice.

Mongolian gerbils (Meriones unguiculatus) naturally infected with the nematode Dentostomella translucida and mice (Mus musculus) that were either pinworm-free or harboring either or both Aspiculuris tetraptera and Syphacia abvelata were crossinfected experimentally with these nematode species. Gerbils were susceptible to infections by S. obvelata and A. tetraptera from mice, whereas mice were resistant to infection by D. translucida from gerbils. The data presented are the first regarding coinfections with these three pinworms in gerbils.

[Oxyuriasis: its indoor transmission correlated with crowding in housing]. / Ossiuriasi: trasmissione indoor correlata coll'affollamento delle abitazioni.

In two different human settings in the province of Pavia, Italy, statistically significant correlations were found between socioeconomic level of the families or crowding in the houses, and prevalence of oxyuriasis in schoolchildren. An indoor transmission is postulated.

Pinworm eradication in community residential settings for people with developmental disabilities.

Pinworm, a common parasitic infestation, can be a chronic nuisance in community and institutional residences for people with developmental disabilities. Asymptomatic human carriage of the parasite and its eggs often prevents eradication from a communal residential setting. The elimination of pinworm from a system of community residential settings through a public health approach was described.

Parasitic infections in Singapore.

This paper describes various parasitic infections which are encountered in Singapore. These include the soil transmitted helminths, pinworms, Clonorchis/Opisthorchis, Hymenolepis, filariae, malarial parasites, Toxoplasma and other protozoal infections. The reasons for the transmission of these parasites in the republic are discussed. Some of the problems associated with their diagnosis are highlighted.

Post coital pin-worm infection.

In Ibadan, Nigeria, an Enterobius vermicularis worm was found in the urine of a soldier complaining of urethral irritation that had started 4 hours after coitus. After his first post-coital micturition, which yielded the worm, the irritation stopped. There was convincing evidence that the worm had entered the soldier's urethra from his partner's perianal region (rear-entry coital position, no ejaculation because of partner's complaint of painful coitus, the partner was a school girl of 15, enterobiasis is common in young school girls in the city, etc.).