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自1985年以来,咸宁市永安镇连年发生伤寒流行。1985年发病112人,发病率234.85/10万;1986年发病471人,发病率924.84/10万;1987年发病754人,发病率1373.73/10万;1988年发病365人,发病率634.94/10万,1989年发病225人,发病率381.36/10万。伤寒流行的主要原因,经调查证明是河水受到污染。多次取河水检验,水中细菌总数及大肠菌群均大
Since 1985, there has been a typhoid epidemic in Yongan County, Xianning City. In 1985, 112 people were diagnosed with the morbidity of 234.85 / 100000; in 1986, 471 people were diagnosed with the incidence of 924.84 / 100,000; 754 were diagnosed in 1987 with the incidence of 1373.73 / 100,000; in 1988, the incidence was 365, with a prevalence of 634.94 / 10 Million, incidence of 225 in 1989, the incidence rate of 381.36 / 100000. The main reason for the typhoid epidemic, the investigation proved that the river was polluted. Check the river several times, the total number of bacteria in water and coliform bacteria are large