[Determination of antibodies against Borrelia burgdorferi in patients with morphea, lichen sclerosus et atrophicus and erythema chronicum migrans]. / Determinación de anticuerpos frente a Borrelia burgdorferi en pacientes con morfea, liquen escleroso y atrófico y eritema crónico migrans.

Several cutaneous entities described in Europe as Chronic Migrans Erythema (CME), Mild Cutis Lymphadenosis (MCL) and Chronic Atrophyc Acrodermatitis (CAA) constitute clinical manifestations of a Borrellia Burgdorferi. The presence of clinical and hystologic lesions similar to those of liquen esclerosus and atrophyc (LEA) and localized esclerodermia (morphea) in patients with CAA has driven to several authors to demonstrate the aethiologic participation of B. Burgdorferi in patients carrying those cutaneous lesions with contradictory results. A serologic study with indirect immunofluorescence (IIF) and FIAX test was performed in 16 patients (9 with morphea, 6 with LEA and 1 with CME) in order to evaluate the role of this microorganism in our environment. Five reactive sera were obtained of which only one presented IgG antibodies titrated at 1/256. The IgM antibodies by IIF and IgG by FIAX test turned out to be negative. A specific relationship between B. Burgdorferi and the studied entities could not be established.

[Childhood shigellosis: clinical and microbiological characteristics]. / Shigellosis infantil: características clínicas y microbiológicas.

Authors present a retrospective study on 89 cases of pediatric shigellosis detected between 1983-1987. Most frequent isolated strain was S. sonnei with 67.4% and S. flexneri with 31.4% cases. 73.9% of all isolements were marked between the months october-december. Mean age of patients was 4.4 years and 44.9% of them need not to be hospitalized. Only 3.3% of patients presented a clinical syndrome of bacillar disentery with blood and mucus. Strains were resistent to ampicilin in 84.2% and to thrimetoprim-sulphimethosaxol in 80.9% of cases.