Welcome to the State of California 

Measles

California is currently experiencing a large outbreak of measles. The outbreak started in December 2014 when at least 40 people who visited or worked at Disneyland theme park in Orange County in mid-December contracted measles and has now spread to at least half a dozen other states. Measles is a highly contagious viral disease. It is widespread in many parts of the world, including Europe, Africa, and Asia. Measles begins with a fever that lasts for a couple of days, followed by a cough, runny nose, conjunctivitis (pink eye), and a rash. The rash typically appears first on the face, along the hairline, and behind the ears and then affects the rest of the body. Infected people are usually contagious from about 4 days before their rash starts to 4 days afterwards. Children routinely get their first dose of the MMR (measles, mumps, rubella) vaccine at 12 months old or later. The second dose of MMR is usually administered before the child begins kindergarten but may be given one month or more after the first dose.

According to Dr. Gil Chavez, State Epidemiologist and Deputy Director, Center for Infectious Diseases, California Department of Public Health:

“Measles is highly contagious and highly preventable through vaccinations. CDPH is urging caution to individuals who are not vaccinated, especially infants under 12 months. Any place where large numbers of people congregate and there are a number of international visitors, like airports, shopping malls and tourist attractions, you may be more likely to find measles, which should be considered if you are not vaccinated. It is safe to visit these places, including the Disneyland Resort, if you are vaccinated. Therefore, CDPH recommends that anyone not already immunized against measles gets immunized at this time. Two doses of measles-containing vaccine (MMR vaccine) are more than 99 percent effective in preventing measles. If you are unsure of your vaccination status, check with your doctor to have a test to check for measles immunity or to receive vaccination.”

Confirmed Measles Cases in California by Local Health Jurisdiction since December 2014

(Last updated: January 30, 2015) 

 

 

Total number of confirmed cases

CALIFORNIA

91*

ALAMEDA

6

      LOS ANGELES

16 

                        City of Long Beach**

2

                 City of Pasadena**

3

MARIN

2

ORANGE

27

RIVERSIDE

5

SAN BERNARDINO

6

SAN DIEGO

13

SAN MATEO

2

SANTA CLARA

2

VENTURA

7

 * 91 confirmed measles cases 

  • Of these, 58 have some identified epi-linkage to Disneyland
    • 40 cases have primary linkages to Disney (as employees or visitors) where they are presumed to have been exposed
    • 18 cases are secondary or tertiary cases to the above 40

** City health jurisdictions not included in county total 

 

Age Distribution of California Confirmed Cases

Age (Years)

Total*

%

<1

5

6%

1-4

11

13%

5-19

17

19%

>20

55

63%

* 3 cases have missing age data

 Last updated: January 30th, 2015. Cases will be updated every Monday, Wednesday, and Friday.        

The California Department of Public Health (CDPH) is no longer able to provide out-of-state information for measles cases as states are not required to report cases to CDPH. Please contact the Centers for Disease Control and Prevention (CDC) for the case counts outside of California. Additional information about measles activity nationwide may be found at the CDC website. 

For routine measles surveillance data, please see the Vaccine Preventable Disease Annual Report.

 

How Well-Vaccinated Is Your Child's Child Care Facility/School?

Child care facilities with low vaccination rates are at increased risk for outbreaks of vaccine-preventable diseases. Some children are allowed by California law to skip immunizations if a parent submits a personal beliefs exemption (PBE) or medical exemption (PME) at enrollment. Other children, may be admitted to child care on the 'condition' they complete remaining vaccinations when due. Often there is no follow-up and these children remain under-vaccinated. To lookup vaccination rates at your child care/ school, click below:

Child Care/Preschool | Kindergarten | 7th Grade

Facts
Information for Health Professionals
Data and Surveillance
Resources
 
 
Last modified on: 1/30/2015 4:26 PM