Abstract
Pediatric Annals | The strain of measles that caused over 55,000 cases, 130 deaths, and 1 1,000 hospitalizations in the resurgence of 1989 to 1991 no longer exists in the United States. In 1997, the number of reported measles cases was the lowest ever - a provisional total of 135 cases. All of these cases were related to imported cases, because indigenous measles transmission has apparently been interrupted. Polio,

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