( HLN ) Unlike a number of her West Coast neighbors , Kristen Bell is all about vaccinating her kids . So much so , she wants everyone around her children to be vaccinated as well . HLN : Dad wants school to ban unvaccinated kids . `` When Lincoln was born ( in March 2013 ) , the whooping cough epidemic was growing , and before she was 2 months old , we simply said , 'You have to get a whooping cough vaccination if you are going to hold our baby , ' `` the actress told The Hollywood Reporter . The `` Frozen '' and `` House of Lies '' actress is taking the same approach with Delta , her second daughter with husband Dax Shepard , who was born in December 2014 . As you might remember , that 's when measles reached the outbreak stage in the United States . `` It 's a very simple logic : I believe in trusting doctors , not know-it-alls , '' Bell told the magazine . HLN : To vaccinate or not ? Bill requires doctor consult . More and more parents in parts of California , especially around cities such as San Francisco and Los Angeles , choose to opt out of vaccinating their children under the `` personal belief exemption . '' Dr. Nina L. Shapiro of Mattel Children 's Hospital UCLA told The Hollywood Reporter that schools with large numbers of unimmunized children compromise what 's known as herd immunity . `` The non-vaccination rates in schools are astounding , and it is very dangerous , '' Shapiro told the magazine . `` I think a school that has less than 90 % of its children immunized is at very high risk for these diseases to start cropping up . '' She 's referring to diseases that have previously been eradicated or greatly reduced by the use of vaccines , including measles and whooping cough . HLN : 9 things to know right now about the measles . Aside from asking her friends and family members to get their children and themselves vaccinated , Bell has also taken to Twitter to help educate parents about the importance of immunizations .
Kristen Bell : ' I believe in trusting doctors , not know- ing what they're doing. " Some people on West Coast not vaccinating their children .