In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

WASHINGTON (AP) — In the midst of a measles outbreak, President Barack Obama is telling parents to get their kids vaccinated. 
  
 Obama says those who don't get their shots can pose a risk to infants and other people who can't get vaccinated. 
  
 The president spoke in an interview with NBC Sunday. The interview is airing Monday on The Today Show but the network released excerpts in advance. 
  
 More than 100 cases of the measles have been reported in the U.S. since last month. Many cases have been traced directly or indirectly to Disneyland in Southern California. 
  
 Obama says measles outbreaks are preventable. He says he understands that some families are concerned about vaccinations, but the science on them is "pretty indisputable." 
  
 Obama says a major success of civilization is the ability to prevent diseases that have been devastating in the past. ||||| Play Facebook 
  
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 Embed Gov. Chris Christie Backs Measles Vaccination 0:33 autoplay autoplay Copy this code to your website or blog 
  
 CAMBRIDGE, England -- New Jersey Gov. Chris Christie on Monday said the government needs to strike a "balance" between public health and parental choice in making decisions about vaccinating kids, even as an outbreak of measles is spreading among unvaccinated people in the United States. But hours later, his office sent out a clarification of those remarks. 
  
 "We vaccinate ours [kids], and so, you know that's the best expression I can give you of my opinion," Christie first told reporters when asked if he would urge Americans to vaccinate their children. "You know it's much more important what you think as a parent than what you think as a public official. And that's what we do. But I also understand that parents need to have some measure of choice in things as well, so that's the balance that the government has to decide." 
  
 The governor's office issued a statement later Monday morning to clarify his remarks, stating: "The Governor believes vaccines are an important public health protection and with a disease like measles there is no question kids should be vaccinated. At the same time different states require different degrees of vaccination, which is why he was calling for balance in which ones government should mandate." 
  
 Christie is in the United Kingdom for a three-day trip that's officially billed as a trade mission for his state but largely viewed as a chance to build foreign policy credibility ahead of the 2016 presidential election. He made the comments standing outside MedImmune, a company with business ties to New Jersey that makes vaccines and biologic drugs. 
  
 Pressed by reporters about whether he believes vaccines are dangerous, Christie responded: "I didn't say that - I said different disease types can be more lethal so that the concern would be measuring whatever the perceived danger is by a vaccine and we've had plenty of that over a period of time versus what the risk to public health is. And that's exactly what I mean by what I said." 
  
 President Obama on Sunday told Americans, "get your kids vaccinated." He told NBC News' Savannah Guthrie, "The science is, you know, pretty indisputable." 
  
 Democrats jumped on Christie's statement, saying his comments show his embrace of "junk science." 
  
 "If his campaign is going to be about kissing up to the radical, conspiracy theory base that's wagging the dog of today's Republican Party, that's up to him and his cracker-jack team," said Democratic National Committee spokesman Mo Elleithee. "But if he wants to actually be a leader, then he should stop bowing to junk science and take a cue from President Obama by showing leadership that promotes facts and keeps our children and our nation safe." 
  
 - MSNBC's Kasie Hunt |||||
Chris Christie is in the UK—technically on a trade mission for New Jersey, but most are looking at the trip as a precursor to his seemingly inevitable presidential campaign—and today in England he was asked about vaccinations in light of the US measles outbreak. "We vaccinate ours [kids], and so, you know that's the best expression I can give you of my opinion," the governor said, according to NBC News. "You know, it's much more important what you think as a parent than what you think as a public official. And that's what we do. But I also understand that parents need to have some measure of choice in things as well, so that's the balance that the government has to decide." He was at MedImmune at the time, a company that makes vaccines and has trade ties to New Jersey, and was then asked if he thinks vaccines are dangerous. "I didn't say that," he said. "I said different disease types can be more lethal, so that the concern would be measuring whatever the perceived danger is by a vaccine, and we've had plenty of that over a period of time versus what the risk to public health is. And that's exactly what I mean by what I said." President Obama took a firmer stance in an interview with NBC airing today on Today, the AP reports: He said that while he understands the concerns, the science on vaccines is "pretty indisputable" and that those who remain unvaccinated by choice are a danger to babies and others who can't be vaccinated. "Get your kids vaccinated," he said.