Face of boy with measles on the third day of rash. Courtesy CDC
Face of boy with measles on the third day of rash. Courtesy CDC

State health officials are poised to announce Friday an end to an outbreak of measles linked to a Disneyland guest who visited the Anaheim theme park in December.

The last case of measles was confirmed March 2, prompting officials to set April 17 as the date when the outbreak is considered over if there are no new cases reported. State officials have organized a conference call with news media to provide an update on the outbreak Friday morning.

Since Feb. 27, only three new cases were reported in the state. The most recent case was out of Los Angeles County, bringing the total there to 28, with two in Long Beach and four in Pasadena, where they have their own health departments. The 133rd case was reported in Ventura County, bringing the county’s total to 13.

Orange County stands at 35 cases and Riverside County has had eight cases. San Bernardino County has a dozen and San Diego County has 14.

Of the California cases, 40 were traced back to visitors or workers at Disneyland between Dec. 17-20, according to the state. In 30 cases, measles was passed on from someone in the house or another close relation, officials said.

Eleven people contracted the disease in a community setting such as an emergency room where someone was seeking treatment for measles.

In 50 cases, including the latest one, it’s unknown how the disease was contracted.

Of the patients the state has vaccination records for, 57 did not get shots and 25 had one or more doses of the MMR vaccine, according to the state.

There are 173 cases reported in 17 states this year, according to the Centers for Disease Control. Measles cases have been reported in Washington, D.C., Arizona, Colorado, Delaware, Georgia, Illinois, Michigan, Minnesota, Nebraska, New Jersey, New York, Nevada, Pennsylvania, South Dakota, Texas, Utah and Washington.

The outbreaks in Illinois, Washington state and Nevada are unrelated to Disneyland, according to the CDC.

From Dec. 28 to March 6, 142 people from seven states came down with measles from the Disneyland outbreak. The states include Arizona, California, Colorado, Nebraska, Oregon, Utah and Washington state, according to the CDC.

There were 644 measles cases in 27 states, the most since measles was declared eliminated in the U.S. in 2000, according to the CDC. In most cases, the victims were unvaccinated, according to the CDC.

Scientists say the measles virus in this outbreak matches one in the Philippines last year.

— City News Service

Chris Jennewein

Chris Jennewein is Editor & Publisher of Times of San Diego.