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1987年1～12月,在河南省选择三市三县设七个监测点,对不满6周岁的儿童进行两病监测。发现急性呼吸道感染和急性腹泻的年发病率分别为633%、155%。并对影响发病的其它因素进行监测。
From January to December 1987, seven monitoring points were set up in three counties and three counties in Henan Province to monitor two diseases for children under 6 years of age. The annual incidence of acute respiratory infections and acute diarrhea was found to be 633% and 155%, respectively. And to monitor the incidence of other factors.