[Erythrovirus B19 infections. Six years of follow-up in adults and children].

Introduction: The aetiological agent of erythema infectiosum is Erythrovirus B19 (also known as parvovirus B19), frequently found in children and adolescents, but also associated with arthropathy, aplastic crisis, and abortion in adults.

Material And Methods: A retrospective study of Erythrovirus B19 cases in the years 2010-2015.

Results: Of the 56 cases of Erythrovirus B19 diagnosed, 34 were adults (32 women and 2 men) and 22 younger than 18 years (12 girls and 10 boys).

Multiplex PCR reveals that viruses are more frequent than bacteria in children with cystic fibrosis.

Background: Cystic fibrosis is a degenerative disease characterized by progressive epithelial secretory gland dysfunction associated with repeated respiratory infections. Bacterial infections are very frequent in children with cystic fibrosis, but because rapid METHODS: for screening for the wide variety of potentially involved viruses were unavailable until recently, the frequency of viral presence is unknown. Multiplex PCR enables screening for many viruses involved in respiratory infections.

[Streptococcus agalactiae late-onset neonatal infections in Barcelona (1996-2010)].

Objetive: To study the characteristics and evolution of group B Streptococcus (GBS) late-onset diseases, over a period of 15years in 8hospitals the Barcelona area and analyze the possible impact of prophylactic measures for the prevention of early-onset neonatal infections.

Methods: Retrospective review of all patients diagnosed with late-onset neonatal disease due to GBS from 1996 to 2010.

Results: A total of 143 patients were diagnosed.

Tick-borne lymphadenopathy: a new infectious disease in children.

Objective: To describe the epidemiologic and clinical aspects of patients with tick-borne lymphadenopathy (TIBOLA).

Patients And Methods: The study included all patients treated in our hospital who presented characteristic clinical signs of TIBOLA consisting in the presence of an inoculation lesion after a tick bite with regional lymphadenopathies. The study was carried out at the "Corporació Parc Taulí" hospital in the city of Sabadell, Barcelona, Spain.

[Toxoplasmosis and pregnancy. Multicenter study of 16,362 pregnant women in Barcelona].

Background And Objective: The aim of this study was to know: 1) the prevalence of antibodies against toxoplasma in pregnant women, 2) the incidence of primary infection during pregnancy and 3) the prevalence of congenital toxoplasmosis.

Subjects And Method: Seroprevalence was prospectively analyzed in 16,362 pregnant women visited in 8 hospitals and 2 day care centers in Barcelona during 1999. Each participant laboratory included their own assays to detect toxoplasma-specific immunoglobulins IgM, IgA, IgG and IgG avidity antibodies.