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据初步报告,1986年上半年美国共发生麻疹3921例(发病率1.7/10万),比1985年同期增加117.6%,为1983年同期报告的4倍,病例数超过1980年以来的任何一年。其中新泽西州等九个州共3185例,占总数的81.2%。18个州和纽约市发病率>1/10万,且阿肯色州等七个州和纽约市罹患率>3/10万。1986年上半年美国有42个州和3139个县中的9.0%报告有麻疹病例(本地的和输入的),而1985年同期仅20个州和上述各县的2.5%有病例报告。
According to preliminary reports, in the first half of 1986, a total of 3,921 measles cases (incidence 1.7 / 100,000) occurred in the United States, an increase of 117.6% over the same period of 1985, four times the number reported in the same period of 1983 and exceeding any number of cases since 1980 . Among them, there are 3185 cases in nine states including New Jersey, accounting for 81.2% of the total. The incidence was> 1/10 million in 18 states and New York City, and the rate was> 3 / 100,000 in seven states including Arkansas and New York City. In the first half of 1986, 9.0% of 42 states and 3139 counties reported cases of measles (both local and imported) as compared with 2.5% of the 20 states and 2.5% of the above counties in the same period of 1985.