海南省钩端螺旋体病地理流行病学研究　Ⅰ.自然地理、动物地理区划和流行概况

A STUDY OF GEOGRAPHICAL EPIEMIOLOGY ON LEPTOSPIROSIS IN HAINAN ISLAND Ⅰ.Divisions of Natural and Animal Geography and the General Situation of Epidemic

本文简介海南岛的自然地理、啮齿动物地理区划和社会经济（包括人口数、性别年龄分布、人工植被、耕作习惯等）与钩端螺旋体病发生或流行有关的自然因素．扼要报告自1958─1991年以来各年度该病的发病率与病死率，比较了50─90年代总的发病态势是低→高→低，并略作了分析。

This paper briefly introduces the naturalgeography, the geographical divisions ofrodent and the social economy (includingpopulation, the distribution of sex and age,man-made plants, farming habits, et al),aswell as the natural factors related to the occurrenceand epidemic of leptospirosis inHainan Island. It simply reports the annualincidence rate and fatality rate of leptospirosisfrom 1958 to 1991, and point out that.the general trend of incidence from 1950 to1990 was from low to high and to low againsuch is concisely discussed.