At Makthlawaiya, in the Paraguayan Chaco, the prevalence of Trypanosoma (Schizotrypanum) cruzi infection among both domestic Triatoma infestans and domestic dogs was 38%, and IgG anti-T. cruzi antibody was detected by the quantitative enzyme-linked immunosorbent assay (ELISA) in 80% (105/133) of human sera. Ninety percent (25/28) of T. cruzi strains isolated from both T. infestans and dogs showed heterozygous isoenzyme profiles for glucose phosphate isomerase, phosphoglucomutase and 6-phosphogluconate dehydrogenase. These strains appeared to be closely related to Bolivian zymodeme 2. Three Paraguayan T. cruzi strains showed homozygous isoenzyme profiles, similar to those of major Brazilian zymodemes. It was concluded that T. cruzi strains with heterozygous isoenzyme profiles predominate in domestic transmission cycles in this highly endemic area of the Paraguayan Chaco.
The antimicrobial resistance of Pseudomonas aeruginosa to beta-lactams, aminoglycosides and ciprofloxacin was investigated in two Latin American hospitals, one in Venezuela and the other in Paraguay. The resistance of P. aeruginosa was investigated in 1,481 clinically isolated strains, 988 from Asunción and 493 from Caracas, collected between 1996 and 1999. Susceptibility was assessed by the disk diffusion method according to the National Committee for Clinical Laboratory Standards. 11.4% were resistant to cefoperazone, 11.4% to ceftazidime, 12.8% to piperacillin, 13.6% to amikacin, 18.2% to gentamicin, 11.1% to ciprofloxacin, and 6.7% to imipenem. There were significant differences in resistance patterns between isolates from Asunción and Caracas. Resistance was higher in Caracas. Despite similar antibiotic usage policies and other measures, differences in the resistance patterns of P. aeruginosa are evident in this study. The clinical and therapeutic implications of this resistance suggest the need to maintain surveillance in local settings, especially in developing countries such as Venezuela and Paraguay.
seguros y efectivos cuando se usan según las indicaciones".Tradicionalmente la automedicación, se ha entendido ligada al autocuidado, sin embargo, las investigaciones realizadas hacen pensar que se trata de un comportamiento mucho más complejo y determinado por multitud de variables (3) .Existen dos tipos de automedicaciones. La primera es aquella en donde el paciente emplea medicamentos con las indicaciones adecuadas, medicamentos considerados suficientemente seguros como para
Resumen: Caracterizar los accidentes por animales ponzoñosos ocurridos en el Municipio de Afuá, Isla de Marajó, Pará, Brasil. Estudio cuantitativo, descriptivo, transversal y retrospectivo. Durante el año 2016, fueron notificados 92 casos de accidentes por animales ponzoñosos, 90% fueron por ofidismo, los cuales fueron más frecuentes en varones 88%, de 20 a 39 años. Sin embargo, los provocados por escorpiones fueron más frecuentes en el sexo femenino 57% y de 1 a 9 años. El género Bothrops fue el responsable de la mayoria de los acidentes ofídicos. Para ambos agentes, los accidentes fueron classificados como moderados. Las víctimas por serpientes llevaron de 3-6 horas para recibir atención sanitaria, en tanto las víctimas por escorpionismo llevaron de 1 a 3 horas. Para ambos casos, los afectados evolucionaron sin ninguna secuela. A pesar de su nula o escasa mortalidad estos accidentes constituyen un importante problema de Salud Pública.
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