由于安全考虑,在大多数童年和流感疫苗中,疫苗中以汞为基础的防腐剂 -- -- 硫磺 -- -- 已经减少。 Thimerosal, a mercury-based preservative in vaccines, has been reduced in most childhood and flu vaccines due to safety concerns.

自20世纪30年代以来,在疫苗中使用的基防腐剂提默,由于安全问题,已被从大多数儿童和流感疫苗中删除,尽管研究显示没有与自闭症的联系. Thimerosal, a mercury-based preservative used in vaccines since the 1930s, has been largely removed from most childhood and flu vaccines due to safety concerns, despite studies showing no link to autism. 大多数流感疫苗现在都用单剂量注射器注射,将硫柳汞的使用减少到最低程度。 Most flu vaccines now come in single-dose syringes, minimizing thimerosal use. 美国政府可能很快会建议使用无硫化流感疫苗, 尽管卫生专家认为流感的风险大于任何含硫化物的潜在风险。 The U.S. government may soon recommend thimerosal-free flu shots, though health experts argue the risk from influenza outweighs any potential risks from thimerosal.