| environmental factors and the distribution of mansonelliases in southern venezuela. | the distribution of mansonelliases and their relation to various quantitative criteria were determined through the study of 1,057 subjects in 17 localities in ten regions of amazonas state and bolívar state. the total prevalence among the blood samples, determined through the knott technique, was 18.54%. 11.26% were parasited by mansonella perstans, 9.93% by mansonella ozzardi, and 2.63% by both species. the average of microfilaremia was 48.19 mf/ml of blood in m. perstans and 13.79 mf/ml in m. ... | 2000 | 10887651 |
| onchocerciasis endemic in the state of bolivar, venezuela. | microfilariae of onchocerca volvulus were demonstrated by single shoulder-skin biopsy in 42.8% of inhabitants of seven amerindian villages in an area of approximately 10,000 km2, near the brasilian roraima territory. the highest prevalence was found among the yanomama indians of chajuraña (84.6%, with a mean of 61.3 microfilariae per mg of skin). the six other communities were affected, but with lower prevalence and microfilaria skin densities. the absence of lymphoedema and the few subcutaneous ... | 1989 | 2604478 |
| [mansonelliasis in the southeast venezuelan orinoquia region]. | physical exam and skin biopsy were performed and peripheral blood samples drawn from 10% of the inhabitants of 26 jungle villages of the state of bolívar, venezuela. one hundred and fifty three indians and an inhabitant of mixed blood from 13 different communities were found to be infected with mansonelliasis representing a global index of 36.40% in the endemic area. the parasitosis was found to be concentrated in three areas. the largest, located in the southwest of the country and forming part ... | 1992 | 1307411 |
| mansonella ozzardi infections in indians of the southwestern part of the state of bolivar, venezuela. | mansonella ozzardi infections were found in 80/139 (58%) of indians living in the forest of the upper caura river basin located in the southwestern part of bolivar state, venezuela. in four (3%) of the blood samples a second type of microfilaria which could not be identified was also found. | 1980 | 6992608 |
| microfilaria bolivarensis: a new species of filaria from man in venezuela. | an unsheathed microfilaria, unlike any other already described from man, was found in thick blood smears and knott samples taken from amerinds living along the upper caura river in bolivar state, venezuela. the mirofilaria, which measures 256 x 7-8 micrometers in thick blood smears and 300 x 8 micrometers in knott samples, is easily differentiated morphologically from mansonella ozzardi with which it often occurs concomitantly. it is readily differentiated, on morphological criteria, from all ot ... | 1980 | 7406105 |