| distribution of hydatidosis and cysticercosis in different peruvian populations as demonstrated by an enzyme-linked immunoelectrotransfer blot (eitb) assay. the cysticercosis working group in peru (cwg). | a serosurvey for human hydatidosis and cysticercosis was performed in different regions of peru. those regions included a known endemic area for cystic hydatid disease, a cooperative in the central peruvian andes near the city of tarma, department of junin; three areas endemic for cysticercosis in the departments of ancash, cuzco, and san martin, where the status of hydatid disease is not well defined; and an urban shantytown near lima, where neither zoonosis is known to be present. a seropreval ... | 1994 | 7810822 |
| the prevalence and avidity of toxoplasma gondii igg antibodies in pigs from brazil and peru. | raw or inadequately cooked pork is an important source of toxoplasma gondii infection, and the infection rate in animals used as human food, is an important risk predictor. the prevalence of this infection was estimated in 396 sera from 5-month old pigs obtained at abattoirs in são paulo, brazil (300) and lima, peru (96). the seroprevalence was higher in pigs from peru (32.3%) as compared to brazil (9.6%), as detected by elisa and western blot. hemagglutination gave poor resolution which was not ... | 2000 | 10889357 |
| cryptosporidium species and genotypes in hiv-positive patients in lima, peru. | cryptosporidium parasites from a cross-sectional study conducted in two national hospitals in lima, peru were genetically characterized to determine the diversity of cryptosporidium spp. in hiv-positive people. a total of 2,672 patients participated in this study and provided 13,937 specimens. cryptosporidium oocysts were detected by microscopy in 354 (13.3%) of the patients. analysis of 951 cryptosporidium-positive specimens from 300 patients using a small subunit rrna-based pcr-rflp tool ident ... | 2003 | 14736153 |
| identification of bloodmeal sources of lutzomyia spp. in peru. | bloodmeal sources of lutzomyia spp. were determined, using the bloodmeal analysis precipitin test, in chaute, lima, peru, an area endemic for cutaneous leishmaniasis (uta). from april 1990 to may 1991, sandflies were sampled in and around the village houses, with cdc light traps and a shannon trap with protected human bait, respectively. overall, 1424 sandflies were collected engorged. in indoor collections, human blood (n = 275) was the most frequent bloodmeal found, followed by cow (171) and c ... | 1994 | 7944678 |
| factors associated with taenia solium cysticercosis: analysis of nine hundred forty-six peruvian neurologic patients. cysticercosis working group in peru (cwg). | in most developing countries, 10% of acute neurologic cases are patients with neurocysticercosis (ncc). determining specific factors associated with contracting ncc will facilitate its diagnosis and prevention. we examined multiple socioeconomic, demographic, environmental, medical, and behavioral characteristics of 946 peruvian neurologic patients for a correlation with ncc, which was diagnosed by the highly specific and sensitive electroimmunotransfer blot (eitb) or immunoblot assay. eighteen ... | 1995 | 7872441 |
| prevalence and comparison of serologic assays, necropsy, and tongue examination for the diagnosis of porcine cysticercosis in peru. | swine cysticercosis, a severe zoonotic disease which is part of the taenia solium life cycle, causes major economic losses in pig husbandry. throughout south america, farmers diagnose cysticercosis by examining the tongues of their pigs for cysticercus nodules. farmers do not bring pigs believed to be infected to the slaughterhouse for fear of confiscation. therefore, reliable statistics on porcine cysticercosis can only be acquired at the household level. we examined the utility of the tongue t ... | 1990 | 2389823 |
| immunological survey in high altitude: effect on antibody production and the complement system. | in order to asses the effect of acute exposure to natural high altitude on some immunological mechanisms of mice, the primary response to srbc was studied by the direct hemolytic plaque and hemagglutination tests. a control group was studied in lima, peru, 150 m. at high altitude (ticlio, peru, 4843 m), we found fewer spleen plaque-forming cells (pfc) and the maximal peak of pfc was delayed 1 day, as compared with the response at a lower altitude. conversely, there was a higher serum concentrat ... | 1975 | 820289 |
| [epidemiology of cysticercosis in peru]. | to determine the frequency and distribution of cysticercosis in peru, we have reviewed the post mortem examinations of 12 years in the morgue in lima (necropsies of persons apparently healthy, who died suddenly for different reasons) and in 11 hospitals: 6 in lima (5 from adults and 1 from children) and from 5 hospitals from other cities located north and south of the capital. the material includes 50 000 necropsies and in those the frequency of cysticercosis was determined; its geographical dis ... | 1977 | 616526 |
| seroprevalence of toxoplasma gondii in swine from slaughterhouses in lima, peru, and georgia, u.s.a. | toxoplasma gondii is an important pathogen transmitted by food, with raw or undercooked meat as the main foodborne source of toxoplasmosis. in peru, 2-4 million people have antibodies to t. gondii. it is believed that more than 60 million people in the united states are infected with t. gondii. in this study, the prevalence of t. gondii in pigs from peru and the united states was determined by western blot. the presence of igg antibodies to t. gondii from serum samples was determined. blood samp ... | 2004 | 15357100 |
| a molecular biologic study of enterocytozoon bieneusi in hiv-infected patients in lima, peru. | a cross-sectional study was conducted to examine the genotype distribution of enterocytozoon bieneusi in hiv-infected patients who visited two government hospitals in lima, peru from january 2000 through march 2003. microsporidia were detected by microscopy in 105 (3.9%) of 2,672 patients. a total of 212 stool samples from 89 microsporidia-positive patients were genotyped by sequence analysis of the internal transcribed spacer (its) region of the rrna gene. a 392-bp fragment containing the compl ... | 2003 | 14736175 |
| [neurocysticercosis in a paediatric population in lima: an epidemiological and clinical analysis]. | neurocysticercosis (ncc) in children is a clinical entity that was believed to be infrequent but, as methods of diagnosis by means of imaging techniques and immunological tests have improved, it has become possible to confirm more cases. this disease has been reported as being most prevalent in developing countries but over the past few years there has also been an increase in the incidence in developed countries. | 2003 | 12599147 |
| epidemiologic differences between cyclosporiasis and cryptosporidiosis in peruvian children. | we compared the epidemiologic characteristics of cyclosporiasis and cryptosporidiosis in data from a cohort study of diarrhea in a periurban community near lima, peru. children had an average of 0.20 episodes of cyclosporiasis/year and 0.22 episodes of cryptosporidiosis/year of follow-up. the incidence of cryptosporidiosis peaked at 0.42 for 1-year-old children and declined to 0.06 episodes/child-year for 5- to 9-year-old children. in contrast, the incidence of cyclosporiasis was fairly constant ... | 2002 | 12023913 |
| pilot project of biogas production from pig manure and urine mixture at ambient temperature in ventanilla (lima, peru). | parque porcino de ventanilla has an extension of 840ha with 2200 farmers dedicated to pig production. there is a lack of services in the area (i.e., water supply, electricity, or waste collection). anaerobic treatment of pig manure would replace current dumping and incineration, reducing environmental pollution and hazards to public health, as well as providing an organic fertilizer and biogas. the objective of the present work was to study the viability of ambient temperature anaerobic digestio ... | 2009 | 18417337 |
| molecular identification of echinococcus isolates from peru. | genetic variations in tapeworms causing cystic echinococcosis in peru were investigated. seventy one larval isolates collected from different intermediate hosts and geographic regions were identified by the dna sequencing of genes for mitochondrial cytochrome c oxidase subunit 1 (cox1) and nuclear elongation factor 1 alpha (ef1a). the g7 genotype (e. canadensis pig strain) was found for the first time in pigs reared in the city of lima. echinococcus granulosus sensu stricto (sheep strain or g1) ... | 2009 | 19567235 |