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Article
May 7, 1997

Measles—United States, 1996, and the Interruption of Indigenous Transmission

JAMA. 1997;277(17):1345-1346. doi:10.1001/jama.1997.03540410023009
Abstract

AS OF December 30, 1996 (week 52), local and state health departments had reported a provisional total of 488 confirmed cases of measles to CDC for 1996, and the Commonwealth of Puerto Rico had reported eight cases. In addition, indigenous transmission of measles in the United States was interrrupted for a prolonged period beginning in late 1996. This report summarizes measles surveillance data for 1996, which indicate a substantial proportion of cases were associated with continued international importations of measles and outbreaks among school-aged children who were not required to receive a second dose of measles-containing vaccine (MCV) to attend school.

Case Classification  Of the 488 provisional cases, 355 (73%) were indigenous to the United States, including 332 (68%) cases acquired in the state reporting the case and 23 (5%) cases resulting from spread from another state. International importations accounted for 47 (10%) cases of measles, and an

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