[Argentine Consensus of Congenital Toxoplasmosis].

The mother-to-child transmission in Toxoplasma gondii infection occurs only when the infection is acquired for the first time during pregnancy. The prenatal and early postnatal diagnosis can only be achieved by serological testing. Serologic tests have different sensitivities, specificities and complexities, so that different tests in more than one blood sample are necessary for the diagnosis.

[Cytomegalovirus infection with hepatic involvement in immunocompetent adults].

We retrospectively evaluated 73 immunocompetent adult patients assisted at our Infectious Diseases Clinic between March 1999 and March 2004 who presented fever and asthenia, mild to moderate increase of transaminases and serological findings compatible with recent cytomegalovirus infection. We excluded patients with a history of transfusions, drug abuse, immunodeficiencies, preexistent hepatic impairment or serological findings compatible with acute hepatitis A, B and C (HAV, HBV, HCV) and Epstein-Barr virus (EBV). The laboratory diagnosis of recent cytomegalovirus infection was made by especific IgM detection (ELISA) or a significant increase of specific IgG.

[Detection of acute infection due to legionella pneumophila in patient with community acquired pneumonia in Buenos Aires city].

Community-acquired pneumonia (CAP) is caused by different microorganisms, their frequency varying in each community. Legionella pneumophila has been reported as etiologic agent of CAP. The aim of our study was to determine the incidence of acute infection due to Legionella pneumophila in a group of adult patients in Buenos Aires city.