根据世界卫生组织公布的材料，在1961～1992年第7次霍乱大流行的32年内，全世界共计发现了280多万人发病，发病人数最多的是亚洲。第7次霍乱大流行，各大洲发病率都不一样，亚洲比重最大，占世界发病总人数的48．1％；美洲占25．7％；非洲占25．8％；大洋洲和欧洲发病率很低，? According to the World Health Organization, in the 32 years since the seventh cholera epidemic in 1961-1992, a total of more than 2.8 million people were found in the world and the largest number was in Asia. The seventh cholera epidemic, the incidence rates are not the same on all continents, Asia accounted for the largest proportion, accounting for 48.1% of the total incidence of the world; Americas 25.7%; Africa 25.8%; Oceania and Europe incidence is very low,?