| dipetalonema perstans and mansonella ozzardi in indians of southern venezuela. | microfilariae were observed in 25 of 187 blood leucocyte-culture preparations made for chromosome studies on 28 piaroa and 159 yanomama indians living near the brazilian border of amazonas, venezuela. among the yanomama, 17 (10.7%) were infected, all with mansonella ozzardi. among the piaroa, 8 (28.6%) were infected--3 with m. ozzardi, 4 with dipetalonema perstans, and 1 with both species. | 1976 | 769579 |
| 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 |