Jaime S Inostroza

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We monitored Streptococcus pneumoniae serotypes causing invasive infections in patients admitted to one hospital in southern Chile during a 10-year period (1994 to 2004). All specimens isolated from patients with invasive S. pneumoniae infections were serotyped at the CDC in Atlanta, GA. A total of 508 isolates belonged to 58 serotypes. There were 95(More)
All clinical S. pneumoniae specimens isolated from patients with invasive or sterile-site infections admitted to one regional general hospital in southern Chile were collected during a 5-year period (February 1994 to September 1999). A total of 247 strains belonging to 50 serotypes were isolated in this survey: 69 in patients under 5 years of age, 129 in(More)
Early diagnosis and appropriate therapy are essential for the best prognosis and quality of life in patients with primary immunodeficiency diseases (PIDDs). Experts from several Latin American countries have been meeting on a regular basis as part of an ongoing effort to improve the diagnosis and treatment of PIDD in this region. Three programmes are in(More)
OBJECTIVES Infant formulas provide more protein than breast milk. High protein intakes, as well as maternal obesity, are risk factors for later obesity. The present study tested whether a formula with lower protein content slows weight gain of infants of overweight mothers (body mass index [BMI] >25 kg/m). METHODS In a randomized double-blind study(More)
We compared the incidence of nasopharyngeal colonization by Streptococcus pneumoniae, the serotypes causing mucosal and invasive diseases, and the antibiotic resistance of these strains in patients admitted to three large hospitals and children attending day care centers in two Chilean cities (Santiago and Temuco). The populations in both cities were(More)
Hepatitis C virus antibodies were measured in 26 chronic hemodialyzed patients and 43 kidney transplant recipients, using a second generation ELISA method. Fifty four percent of hemodialyzed had a longer duration of dialysis treatment compared with patients with negative antibodies (57.6 +/- 30.5 vs 15.4 +/- 7.3 months), and did not differ in the number of(More)
We determined the seroprevalence of protective antibodies against Hib in Mexican children under the age of five using a standardized enzyme-linked immunosorbent assay. Hib antibodies (≥ 0.15 μg/ml) were present in 95.34% (±1.14% [seroprevalence ± standard error]) of samples. Fewer children aged 30 to 47 months had protective Hib antibody levels (91.45% ±(More)
The aim of this work was to define antibody levels against four neumococcal serotypes, before and after neumococcal vaccination in patients with respiratory infections. Fifty one patients were studied, 19 children from 1 to 5 years old; children from 6 to 18 years old and 22 adults from 27 to 65 years old. IgG anti-neumococcal, antibodies, against weeks(More)
BACKGROUND To analyse specific immune response to the 23-valent pneumococcal polysaccharide vaccine by measuring pneumococcal antibodies in children with asthma and with respiratory recurrent infection (RRI) as compared to healthy children. METHODS The study included 60 children, divided into three groups: 20 with asthma, 20 with RRI, and 20 healthy(More)