Pediatric hospitalizations associated with 2009 pandemic influenza A (H1N1) in Argentina.

Background: While the Northern Hemisphere experiences the effects of the 2009 pandemic influenza A (H1N1) virus, data from the recent influenza season in the Southern Hemisphere can provide important information on the burden of disease in children.

Methods: We conducted a retrospective case series involving children with acute infection of the lower respiratory tract or fever in whom 2009 H1N1 influenza was diagnosed on reverse-transcriptase polymerase-chain-reaction assay and who were admitted to one of six pediatric hospitals serving a catchment area of 1.2 million children.

Comparison of different anthropometric indices for identifying insulin resistance in schoolchildren.

Objectives: Anthropometric indices have been associated with insulin resistance in children. This study (1) determined the association between insulin resistance and anthropometric indices, including body mass index (BMI), waist circumference (WC), WC/height, weight/(sitting height)(2), and WC/sitting height, and (2) compared the abilities of these five indices to identify children with insulin resistance.

Methods: Data were collected from six elementary schools in Argentina between April and August 2007.

Overweight and lifestyle behaviors of low socioeconomic elementary school children in Buenos Aires.

Background: There is growing interest in understanding the role that lifestyle behaviors play in relation to children's weight status. The objective of the study was to determine the association between children s BMI and dietary practices and maternal BMI.

Methods: 330 students (168M) aged 8.

[Congenital tuberculosis. Infrequent presentation of a common disease].

Congenital tuberculosis is a severe rapidly progressive disease which differs from neonatal tuberculosis because patients present tuberculous lesions during their first weeks of life, primary hepatic complex or hepatic caseous granulomas, confirmation of tuberculosis in placenta or in maternal genital tract (uterus or adnexa), and exclusion of birth channel or postnatal exposure. We report a case of a 20 days newborn baby admitted to the neonatal unit with fever, hepatoesplenomegaly, abdominal distension and respiratory symptoms. Abdominal echography showed ascitis, diffuse hepatomegaly and splenomegaly, focal hipoecoical spleen images and portal lymphadenopathy.