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Background: Chronic Spontaneous Urticaria (CSU) is a disease presenting typical wheals characterized by itching, angioedema or both. Although CU is, by appearance, a relatively “simple” disease, yet it has a devastating effect on those suffering due to its immense social implications. Aims: The aim of the present study was to investigate the effect of omalizumab in the treatment of CSU. In particular, gender, co-administration of drugs and comorbidities were taken into account. Materials and Methods: 108 patients (25 Males/83 Females) admitted to our department were diagnosed with CSU and were treated for 30 months. CSU was estimated on a score basis, which was used in order to define disease severity. The mean total CSU score and the mean CSU score of the first trimester, as well as the first semester, were calculated. Patients were treated with omalizumab, and in several cases, with co-administration of dapsone, cyclosporine and anti-histamines. Results: Females manifested significantly higher scores as compared to males. Further on, patients who relapsed manifested significantly higher scores during the whole time course, as well as at the end of the first semester. Conclusion: Females are more prone to CSU. Although CSU scores in patients with remission, relapse and poor response manifested no significant difference at diagnosis, relapsed patients manifested higher CSU scores in the first semester. Therefore, the first semester of treatment is probably critical for the final patient outcome. Further studies are necessary in order to understand the mechanisms of CSU for better treatment and prognosis.

Pediculosis in humans and especially in children is a very common dermatological disorder caused by the ectoparasite Pediculus humanus capitis De Geer. We investigated the socioeconomic factors affecting the prevalence of pediculosis in the Greek urban area of Athens during 2004–2006. The target population consisted of children from kindergartens. In total, 434 children from single- or two-parent families were investigated with respect to socioeconomic factors such as education, income and family composition, and the prevalence of pediculosis. The overall pediculosis rate was 5.30%. Head louse infestations were significantly higher in female children and in two-parent families. Lice infestations peaked in low- and medium-income families. Head louse infestation rates were influenced by income, parents’ education, and nationality.