Multistate (USA) - Update: Measles, >800 cases

May 17, 2019
Centers for Disease Control (US); State Health Agencies

CDC update

From January 1 to May 10, 2019, 839** individual cases of measles have been confirmed in 23 states. This is an increase of 75 cases from the previous week. This is the greatest number of cases reported in the U.S. since 1994 and since measles was declared eliminated in 2000.

The states that have reported cases to the Centers for Disease Control and Prevention (CDC) are Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Maryland, Massachusetts, Michigan, Missouri, Nevada, New Hampshire, New Jersey, New York, Oregon, Pennsylvania, Texas, Tennessee, and Washington.

The figure below by CDC shows the number of measles cases from 2010 to 2019 (as of May 10).

*Cases as of December 29, 2018. Case count is preliminary and subject to change.
**Cases as of May 10, 2019. Case count is preliminary and subject to change.

New York City

As of May 13, 2019, there have been 498 confirmed cases of measles in Brooklyn and Queens since September. Most of these cases have involved members of the Orthodox Jewish community.

The following case counts are from September 1, 2018, to May 13, 2019.

  • Bensonhurst: 1
  • Borough Park: 74
  • Brighton Beach/Coney Island: 4
  • Crown Heights: 2
  • Midwood/Marine Park: 4
  • Sunset Park: 7
  • Williamsburg: 399
  • Flushing: 3
  • Far Rockaway: 1
  • Hunts Point, Longwood and Melrose: 1
  • Flatbush: 1
  • Jamaica :1

Over the last 7 days, 32 new cases have been reported in Borough Park (5), Brighton Beach/Coney Island (1), Sunset Park (3), Williamsburg (20), Flushing (1), Flatbush (1), Jamaica (1).

Of the 498 cases in this outbreak, 377 were unvaccinated, 32 with one dose of the measles-mumps-rubella (MMR) vaccine, 22 with two doses MMR vaccine and.67 with unknown status.


On May 15, 2019, the Washington State Department of Health reported four newly diagnosed cases of measles in residents of three western Washington counties (King County 2, Snohomish County 1, Pierce County 1). These new cases are in addition to the case Tacoma-Pierce County Health Department announced on May 12, 2019.

While the exact exposure information for the new cases is not yet known, all spent time in SeaTac airport during their likely time of exposure or infectiousness. Find more details on places the new cases visited when they were infectious at Public Health — Seattle & King County, Tacoma-Pierce County Health Department and Snohomish Health District websites. Each local health agency will add new information about dates and locations of potential exposure to measles as each local investigation proceeds.

The Washington State Department of Health is supporting local public health agencies with disease investigation, laboratory testing and other efforts to protect their communities.

A current statewide case count for measles is on the department’s website and will be updated as new cases are diagnosed.

As of May 17, 2019, there have been 78 cases reported in 4 counties in Washington: Clark County (71), King County (4), Pierce County (2), Snohomish County (1).

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