The World Health Organization called "vaccine hesitancy" a global health threat for 2019.The Centers for Disease Control and Prevention says there is "no link between vaccines and autism."Celebrities including Julie Bowen, Hillary Clinton, and Jennifer Garner have spoken out about the necessity of vaccinations.Despite extensive amounts of research, the myth that vaccinations cause autism or other life-changing side effects persists.The World Health Organization (WHO) listed "vaccine hesitancy" as one of the 10 global health threats for 2019, saying, "vaccination is one of the most cost-effective ways of avoiding diseaseit currently prevents 2 to 3 million deaths a year, and a further 1.5 million could be avoided if global coverage of vaccinations improved."The Centers for Disease Control and Prevention (CDC), among many other organizations, also has a section on its website addressing vaccinations and autism. "Studies have shown that there is no link between receiving vaccines and developing ASD [autism spectrum disorder]," it says.We've rounded up 14 celebrities who have used their platforms to shut down anti-vaxxing myths and speak out about the need for vaccinating our children and ourselves.Kristen Bell wrote an article for HuffPost in support of vaccinations."As to the benefits of vaccinations, it has been proven; they work," the "Good Place" actress wrote in an article for HuffPost. "That's enough for me to climb up on a soap box, make some ugly cardboard sign in my garage, and let other mothers know that it's safe, important, and bigger than emotion: It's the truth."Julie Bowen's kids are vaccinated.Julie Bowen reached out to her loved ones when deciding whether to vaccinate her kids."I spoke with my sister, who is an infectious disease doctorand then also with my own doctor and my pediatrician, who said to me: 'By not vaccinating your children, you're putting them at serious risk.' That was it for me," the "Modern Family" actress said in an interview with WebMD. "Once I made that decision, there were a few tearsmostly minebut now all three boys are on regular vaccination schedules."Sarah Michelle Gellar wants to protect everyone's children."Having children is the greatest gift anyone's ever given me, and if I can help protect anyone else's gift, then it's not just my pleasure, but it's my responsibility to do it," the "Buffy the Vampire Slayer" actress told Parade of her decision to encourage parents to get their kids vaccinated against whooping cough.See the rest of the story at Business Insider Click here to read full news..