Amler R W, Bloch A B, Orenstein W A, Bart K J, Turner P M, Hinman A R
JAMA. 1982 Nov 5;248(17):2129-33. doi: 10.1001/jama.248.17.2129.
In the period 1980-1981, two hundred nine imported measles cases were reported in the United States. These cases represent 1.3% of the total of 16,630 cases of measles reported to the Centers for Disease Control (CDC) during that period. An average of two imported measles cases were reported each week. The travelers with imported measles were United States citizens and foreign nationals who arrived from 47 different countries throughout the world. However, returning United States citizens have accounted for a rising proportion of imported measles cases. Approximately half (49.3%) of the imported cases were reported by four areas: California, New York State exclusive of New York City, New York City, and Florida. Seven measles outbreaks occurring following importations during the two-year period were identified. In addition to 114 imported measles cases reported to the CDC in 1981, 437 measles cases were reported to be caused directly or indirectly by those importations. The actual number of import-associated cases may have been considerably higher. Imported measles and associated cases together accounted for at least 17% (551/3,124) of reported measles cases in 1981.
在1980年至1981年期间，美国报告了209例输入性麻疹病例。这些病例占同期向疾病控制中心（CDC）报告的16,630例麻疹病例总数的1.3%。平均每周报告两例输入性麻疹病例。输入性麻疹患者包括美国公民和来自全球47个不同国家的外国公民。然而，回国的美国公民在输入性麻疹病例中所占比例呈上升趋势。约一半（49.3%）的输入性病例来自四个地区：加利福尼亚州、不包括纽约市的纽约州、纽约市和佛罗里达州。在这两年期间，确定了七起输入性麻疹引发的疫情。除了1981年向CDC报告的114例输入性麻疹病例外，另有437例麻疹病例据报告是由这些输入病例直接或间接导致的。与输入相关的实际病例数可能要高得多。输入性麻疹及相关病例至少占1981年报告的麻疹病例的17%（551/3,124）。
