| [genetic diversity of isoenzyme in culex pipiens complex field populations sampling from distinct area of china]. | eight field populations of culex pipiens complex collected from five provinces (guangdong, henan, shandong, beijing and yunnan) in 2001 were used to study genetic diversity by starch gel electrophoresis. data from seven loci (me,mdh-1,mdh-2,mdh-3,gpd,est-2,est-3) of four isozymes were analyzed by software biosys2.0 and fstat(version 2.9.3). the results were as follows: (1) the values of he (from 0.098 to 0.41) indicated genetic variabilities of different degree in populations.(2)the low level of ... | 2004 | 15639982 |
| studies on the transmission potential of surviving microfilaremias after basic control of filariasis. | after filariasis was basically controlled (the microfilarial rate was lower than 1%) in henan province in 1987, longitudinal observation of the disease has been carried out in all the province in order to study the regular pattern of growth and decline or the transmission potential of the disease. according to the distribution of filaria species and original microfilarial rate, 7 administrative villages in 7 counties were selected as surveillance sites. from 1988 to 1995, etiological and mosquit ... | 1997 | 9444011 |