[Clinical-epidemiological characterization of neonatal necrotizing enterocolitis of seven public hospitals].

Background: Necrotizing enterocolitis (NEC) presents high mortality and postoperative, gastrointestinal and neurodevelopmental morbidity. There is limited information about NEC in Chile.

Aim: To describe the clinical/epidemiological behavior of newborns who underwent NEC.

[Antibiotics in neonatology. Part I: Dosage recommendations based on the most recent evidence in newborns Advisory Committee on Neonatal Infections, Chilean Society of Infectious Diseases].

Antibiotics are the most widely used medications in neonates during their first month of life in neonatal units, mainly due to the high risk they present of acquiring serious infections such as sepsis. Most of these antibiotics are used with extrapolated doses based on the suggestions in the adult population and older children, despite the fact that the pathophysiology in newborns is absolutely different. This leads to a higher risk of more adverse effects occurring, which can lead to greater toxicity and therapeutic failures, among others.

[Exfoliative erythroderma and infective dermatitis in an infant infected with human T-lymphotropic virus type I (HTLV I)].

We report a HTLV-I positive infant, whose infection was confirmed by polymerase chain reaction. The infant presented with an acute, severe, generalized eczema, exfoliation and severe erythroderma that yielded to an acute proteic malnutrition and frequent staphylococcal infections, unresponsive to treatment, since the second month of life. Immunodeficiencies from other origin and other causes of erythroderma were ruled out.

[Brucellosis in a student].

We describe the case of a student with a history of two and a half months of fever, hepatosplenomegaly, cutaneous, hematological and bone manifestations, within an epidemiological background compatible with the diagnosis of Brucellosis. Diagnosis of Brucella abortus was confirmed by serology and positive blood cultures. Clinical manifestations of brucellosis and diagnostic and treatment strategies are reviewed.