their parents vaccinated. seth mnookin, a "newsweek" contributor joins us. . it did spark panic and the cause for parents not to get their kids properly vaccinated. >> his study came out in 1998, a study of 12 children who he said presented a possible link between the mmr vaccine where a gut disorder and then possibly with autism. then in his public appearances he went further and recommended that parents not vaccinated their children with the combined mmr vaccine. almost immediately in the u.k., you saw vaccination rates plummet and measles infections rise. now that hysteria or fear about vaccines has spread to involve a lot of other vaccines and we're