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Leishmaniasis tegumentaria americana en amerindios de Costa Rica

Mata Jiménez, Leonardo; Achí Araya, María Rosario; Salas Chaves, Pilar (1985)

Entre 1979 y 1984 se realizaron estudios clínicos y epidemiológicos en las poblaciones de Limoncito y Abrojo (Guaymi), Cabagra y Amubri (Bribri), Boruca (Boruca) y Ujarrás (Cabecar). Los estudios clínicos consistieron en ...

Ooquistes de Cryptosporidium sp. (Apicomplexa: Cryptosporidiiadae) y presencia del C. parvum en niños de Costa Rica

Achí Araya, María Rosario; Mata Jiménez, Leonardo (1996)

From 1982 to 1987 infant and preschool Costa Rican children with acute diarrhea were studied. Cryptospo ridium (Tyzzer 1912) and other agents of diarrhea were invetigated. Criptosporydium oocysts were diagnosed in Giemsa ...

Immunomagnetic separation and PCR detection show Shigellae to be common faecal agents in children from urban marginal communities of Costa Rica

Achí Araya, María Rosario; Mata Jiménez, Leonardo; Siles Díaz, Xinia; Lindberg, Alf A. (1996)

Culture and immunomagnetic separation-polymerase chain reaction assays (IMS-PCR) were used to isolate and identify Shigella flexneri, S. dysenteriae type I and S. sonnei in faeces from 250 children up to 5 years and from ...

Serum Antibody Titres to Shigella Lipopolysaccharides and Invasion Plasmid Antigens in Healthy Costa Rican and Swedish Women

Achí Araya, María Rosario; Mata Jiménez, Leonardo; Lindberg, Alf A. (1994)

Specific serum antibody titres to defined lipopolysaccharides (LPS) of Shigella spp. and Salmonella serogroup B (BO) and Shigella invasion plasmid antigens (Ipa) were determined by enzyme immunoassays in healthy Costa Rican ...

Aspectos clínico-epidemiológico de la cripstosporidiosis en Costa Rica

Achí Araya, María Rosario; Mata Jiménez, Leonardo; Vives Blanco, Marcela; Pizarro Torres, Daniel (1985)

Cryprosporidium es un coccidio que en los últimos años ha cobrado mucha importancia por su papel en la etiología de la diarrea en diversas especies de animales y del hombre. Desde que el parásito fue descrito por Tyzzer a ...

Agentes virales y bacterianos en niños hospitalizados con infección respiratoria aguda: Brote epidemiológico

Salas Chaves, Pilar; Achí Araya, María Rosario; Mata Jiménez, Leonardo; Chavarría Milanés, José Fernando (1985)

Nasopharyngeal aspirates were recollected from 76 hospitalized children with acute respiratory infection (ARI). Plastic disposable collectors provided with a sterile feeding probe were used to obtain secretions. Aspirates ...

Influence of Orally Administered Antibiotics on Faecal pH and Volatile Fatty Acid Concentrations on Infants and Young Children

Marsh, W. W.; Hentges, D. J.; Chavarría Milanés, José Fernando; Thal, W. R.; Adams, M. K.; Achí Araya, María Rosario; Mata Jiménez, Leonardo (1990)

Faecal specimens were collected from infants and children with common infections who presented to the Paediatrics Outpatient Department of the National Children's Hospital, San Jose, Costa Rica or to the Paediatrics Clinic, ...