There have been 48 confirmed cases of measles in Washington state since the start of the year as health officials struggle to stop the spread of the infectious disease.

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Since Jan. 1, there have been 47 confirmed cases in Clark County and at least one confirmed case in King County, home of Seattle, CNN reported.

Thirty-four of the cases involved children ages 1 to 10, and 41 patients were not vaccinated against measles, according to Clark County officials.

Measles have also been reported in eight other states this year: Hawaii, Oregon, New York, Pennsylvania, Connecticut, Colorado, California and Georgia, CNN reported.

In New York, the measles outbreak is within observant Jewish communities and linked with from travel to Israel.

There have been at least 209 measles cases since October: 64 cases in Brooklyn and 145 cases in Orange and Rockland counties, according to the New York State Department of Health.

Public health officials have talked with parents, pediatricians and rabbinical leaders in the United States and Israel to encourage measles vaccination, CNN reported.

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