California is on alert for the outbreak of measles that was said to have originated from Disney parks, with already 70 recorded cases of infected individuals, Fox News reported.

News has been erupting throughout the past weeks of an outbreak of measles after an infected "patient zero" went to Disneyland and ended up spreading the virus. Now public health officials have been urging those who are unvaccinated to stay away from Disney parks and also crowded places in order to avoid contracting the virus or spreading it even more.

Suzi Brown, the spokeswoman for Disneyland Resorts, agreed with the advice, saying that it was safe for those who are vaccinated to visit them, but asked the unvaccinated to pass on, according to SBS.

Fox News reported that five Disney employees have been infected, and the company has asked employees who have been in contact with them to get checked. Park officials are also asking for a blood test to show their immunity against the measles or otherwise put on paid leave. They are also promising vaccinations to employees who needed and wanted them, the Fox News report added.

"Realistically, when you think about Disneyland, you'll have 30,000 to 40,000 people visiting on any given day," said Jim Hill, a popular writer who blogs about the company was quoted by Reuters as saying. "It's like a small city. And just like a small city it has to deal with this kind of thing."

Despite all other precautions, Dr. Gil Chavez from the California Department of Public Health insisted that residents get vaccinated to control the spread of disease, according to The Guardian.

"This is not a trivial illness," he said, as quoted by the outlet.

The outbreak was traced to a young woman who went to Disneyland on Dec. 28, flew to Washington and then came back to Orange County, The Guardian further noted. Now there are reportedly around 70 cases, 62 of which are in California alone and the others spread across Mexico, Utah, Colorado, Washington and Oregon.

The Centers for Disease Control and Prevention refers to measles as "the most deadly of all childhood rash or fever illnesses" and have been urging individuals to seek vaccination. Unfortunately, Orange County has become a hotspot for anti-vaccination as some of the wealthier families decided to either delay vaccination or avoid it entirely, The Guardian added in its report.

It's gotten to the point where Orange County health officials were forced to have students without a proof of immunization prevented from going to school.

The county's public health officer Dr. Eric Handler stated, "From an epidemiological standpoint, in order to prevent spread of the disease, this is a necessary measure."