| [epidemiological surveillance of filariasis after its being basically eradicated in shandong province]. | this paper reports the results of epidemiological surveillance in areas where filariasis has been basically eradicated and control measures no longer adopted in shandong province. a 3-year longitudinal surveillance in 18 villages in 5 counties and a cross-sectional survey in 13 villages of 4 counties were carried out. the results showed that the average microfilaria rate was further reduced from 0.28% and 0.15% in 1980 to 0.19% and 0.05% in 1986, decreased by 32.1% and 66.7% respectively. 34.2% ... | 1989 | 2670312 |