| ecologic studies of venezuelan encephalitis virus and isolations of nepuyo and patois viruses during 1968-1973 at a marsh habitat near the epicenter of the 1969 outbreak in guatemala. | ecologic studies of venezuelan encephalitis (ve) virus at a marsh habitat near the epicenter of the 1969 outbreak in guatemala revealed that the virus was enzootic there. ve virus was isolated yearly during 1968-1973 from sentinel hamsters exposed during the rainy seasons and from mosquitoes collected during july and august 1970. hamsters yielded 41 strains of ve virus and virus was detected within 2 km of the edge of the marsh, in its interior, and at its western extreme 18 km from the central ... | 1976 | 3981 |
| secretory iga against enterotoxins in breast-milk. | a pool of colostrum from guatemalan mothers (guatemalan colostrum)) obtained 2-4 days post partum inhibited the induced fluid accumulation in rabbit ileal loops when incubated with vibrio cholerae or escherichia coli enterotoxin. there was a linear relationship between the quantity of colostrum used and the protection achieved. pools of guatemalan breast-milk obtained 15-30 days post partum and north american breast-milk had the same effect when tested with e. coli and v. cholerae enterotoxins, ... | 1976 | 73692 |
| the role of small animal species in nutrition and food production. | | 1976 | 1036089 |
| coproantigen detection for immunodiagnosis of echinococcosis and taeniasis in dogs and humans. | three elisa assays, based on hyperimmune rabbit serum raised against adult cestode somatic antigen, were applied in this study for the detection of taenia- and echinococcus-specific antigens in host faeces. the first assay, using an antiserum against taenia pisiformis antigen extract, was used in a time-course of t. pisiformis experimental infection in dogs. the assay was shown to be considerably more sensitive than microscopical detection of eggs in faeces. antigen was present in faeces before ... | 1992 | 1594298 |
| studies of patois group arboviruses in mexico, guatemala, honduras, and british honduras. | | 1972 | 4400811 |
| interactions of nutrition and infection. | | 1968 | 4976616 |
| field trial of the coproantigen-based diagnosis of taenia solium taeniasis by enzyme-linked immunosorbent assay. | a microplate-type enzyme-linked immunosorbent assay for the detection of taenia species antigen in human feces was tested in field studies undertaken in two guatemalan communities. the test was based on immunoglobulin g antibodies from a rabbit hyperimmunized to taenia solium proglottides. comparison was made with microscopy and patient interviews as a means of diagnosis. the coproantigen test result was positive in 79 of the 1,582 fecal samples examined. parasitologic confirmation was made in 5 ... | 1996 | 8615446 |
| development and evaluation of an enzyme-linked immunosorbent assay to detect histoplasma capsulatum antigenuria in immunocompromised patients. | histoplasma capsulatum infection causes significant morbidity and mortality in human immunodeficiency virus-infected individuals, particularly those in countries with limited access to rapid diagnostics or antiretroviral therapies. the fungus easily disseminates in persons with aids, resulting in progressive disseminated histoplasmosis (pdh), which can progress rapidly to death if undiagnosed. the availability of a simple, rapid method to detect h. capsulatum infection in less developed countrie ... | 2009 | 19357311 |