MEASLES — UNITED STATES, JANUARY 1–MAY 23, 2014

Sunday, 8th of June 2014

[source]MMWR[|source]

Measles elimination has been maintained in the United States since elimination was declared almost 15 years ago. However, approximately 20 million cases of measles occur each year globally, and importations into the United States continue to pose a risk for measles cases and outbreaks among unvaccinated persons.

In this report, the authors describe the 288 measles cases reported during January 1–May 23, 2014, including an ongoing outbreak involving 138 persons in Ohio. The report asserts that these numbers of measles are unprecedented and represent the highest number of measles cases reported for that period since 1994. The increase in measles cases this year serves as a reminder for health-care providers to be cognizant of the possibility of measles cases occurring in their communities. More details are accessible at: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6322a4.htm?s_cid=mm6322a4_w

 

 ABSTRACT

Both the highest number of measles cases and the largest outbreak since elimination have been reported to CDC this year. As of May 23, 2014, a total of 288 cases were reported, of which 258 (90%) were in persons who were unvaccinated or had unknown vaccination status. Forty (89%) of the 45 importations were associated with U.S travellers returning from abroad.

Importations of measles into communities with unvaccinated persons can lead to measles cases and outbreaks in the United States. Maintenance of high vaccination coverage, ensuring timely vaccination before travel, and early detection and isolation of cases, are key factors to limit importations and the spread of disease.