당시 백신을 접종받은 4천500만 명 중 500여 건의 길랑-바레 증후군이 보고됐으나 사례가 너무 적어 연관성은 확인되지 않았다.
Guillain-Barre syndrome was recorded in about 500 of the 45 million people who had been vaccinated at the time, but the link could not be proved due to the small number of cases.