Serogroup distribution of urogenital Chlamydia trachomatis in urban ethnic groups in The Netherlands.

The prevalence of Chlamydia trachomatis varies between ethnic groups in The Netherlands. It is, however, unknown whether this is associated with specific serogroups. The objective of this study was to determine whether serogroup distribution is associated with ethnic origin in the region of The Hague, The Netherlands. Serogroups of 370 microbiologically confirmed C. trachomatis-positive samples were analysed. The samples were obtained from 247 women and 123 men between January and October 2008, of self-reported Dutch Caucasian, Dutch Antillean, Surinamese, N. African/Turkish or other descent. We observed a difference in serogroup distribution comparing Dutch Caucasian women to Dutch Antillean women (χ2 for distribution P = 0·035). Serogroup C was more common in Dutch Antillean women, whereas serogroup B was less common (P = 0·03). This difference was not observed for Dutch Antillean men. The observed difference in distribution of C. trachomatis serogroups between ethnic groups is relevant for further transmission studies.

Role of tropomyosin as a cross-reacting allergen in sensitization to cockroach in patients from Martinique (French Caribbean island) with a respiratory allergy to mite and a food allergy to crab and shrimp.

BACKGROUND: Tropomyosin has been described as cross-reacting allergen between mite, cockroach and shrimp. METHODS: In 13 patients with asthma and/or rhinitis sensitized to mite and/or German cockroach and presenting urticaria, oral allergy syndrome or angio-edema upon eating shrimp and/or crab, we measured specific IgE to mite, cockroach, crab and shrimp tropomyosin. RESULTS: Ten patients had specific IgE to tropomyosin from mite, 8 from shrimp, 6 from crab and 5 from cockroach. AST inhibition tests indicated that mite allergen is a primary sensitizer and is cross-reacting with shrimp, crab and cockroach allergens. CONCLUSION: Tropomyosin could be the cross-reacting allergen relevant for clinical symptoms to mite, cockroach, shrimp and crab.

[Participation in the Dutch national screening programme for uterine cervic cancer higher after invitation by a general practitioner, especially in groups with a traditional low level of attendance]. / Opkomst bij bevolkingsonderzoek naar baarmoederhalskanker hoger na uitnodiging door de huisarts, in het bijzonder voor groepen met doorgaans lage participatiegraad.

OBJECTIVE: To gain insight into the differences in participation in the screening programme for uterine cervix cancer between women invited by a general practitioner (GP) and women invited by the local health authority (GGD). Specific attention was given to those groups whose participation is generally below average. DESIGN: Descriptive epidemiological study. METHOD: In the period 2000-2003, 237,719 women (30-60 years of age) were invited to participate in the national uterine cervix cancer screening programme in the Southwest of the Netherlands; 37.1% of the women were invited by the GP and 62.9% by the GGD. Data were obtained from the Cervix Information System of the GGDs. Differences in attendance between those invited by the GP and those invited by the GGD were tested by linear regression. Participation was defined as the number of women for whom the result of a cervical smear was known, divided by the number invited. RESULTS: Invitation by a GP led to a 7.9% (95% CI: 7.5-8.3) higher attendance rate than invitation by a GGD. This difference in attendance was higher for women born in Morocco, Turkey, Surinam and the Netherlands Antilles/Aruba (17.2%; 95% CI: 15.2-I9.2), young women (11.9%; 95% CI: 10.8-13.0), women with a low socio-economic status (11.6%; 95% CI: 10.4-12.7), and women who lived in highly urban areas (13.0%; 95% CI: 12.3-13.6). The differences were the greatest among non-western women who were also part of another low-attendance group: 19.0% (95% CI: 16.7-21.2) for women who lived in highly urban areas and 20.8% (95% CI: 16.8-24.9) for those in the youngest age group.