"And if you want to believe your kid doesn't need that many shots, there's plenty of places to find people who agree with you", said Dr. Jonathan Fielding, former head of the Los Angeles County Department of Public Health.
Five states as well as New York City are now experiencing measles outbreaks, that is, three or more cases, and these outbreaks the CDC has said are linked to travelers who brought measles into the United States from countries such as Israel, Ukraine, and the Philippines, where large measles outbreaks are occurring and USA travelers to these countries are being warned by the CDC to be sure they and their families are vaccinated. The disease kills more than 100,000 people a year, most under the age of 5, according to the Mayo Clinic. Contact your health care provider if you can not locate your immunization records and/or are not certain if you are immune to measles.
Most of the cases, 83 percent, are in the Orthodox Jewish section of Williamsburg, Brooklyn.
The largest outbreak is in New York City, centered in a predominantly Orthodox Jewish community in Brooklyn.
Rockland County, north of New York City, has 199 confirmed cases, and that outbreak has spilled out into the neighboring Westchester County, which has recorded eight cases. There have been 334 cases this year, including 31 in just the past week, according to data posted Wednesday. But on Wednesday, New York City officials said the outbreak centred in some of Brooklyn's Jewish neighbourhoods has accounted for 390 cases since October.
Officials said anyone who suspects they were exposed should contact their health care provider before going to the office, follow instructions for reporting it and also isolate themselves if they have any signs or symptoms of measles.
In Oregon, officials reported an additional four cases in the Portland area.
New York City's current outbreak is said to be the city's worst since 1991.
In Washington state, 74 people contracted the infection in that outbreak, including 63 who were unvaccinated. More severe complications like pneumonia, brain swelling and death can also occur. Before the widespread use of vaccines began in 1963, it infected millions every year in the United States, killing several hundred.
For more information on the disease and vaccine, please go to www.alabamapublichealth.gov/immunization/assets/measlesflyer.pdf or https://www.cdc.gov/measles/about/ or contact the ADPH Immunization Division at 800-469-4599.
Dr Shoemack said it could be a serious illness with about one in 10 people needing hospital treatment, which was the case for one of the 10 confirmed Western Bay cases.
Not only can cramped dorm rooms and crowded classrooms be breeding grounds for contagion, but young adults in California are less likely to be vaccinated than other age groups, experts say.