而疫苗本身也不无风险，全球性流感疫苗一直与被称为格林·巴利综合症(GBS)的罕见神经疾病有联系。

Vaccination is not without risk in itself, and pandemic flu vaccines have been associated with a rare neurological condition known as Guillain Barre Syndrome (GBS).

youdao

来自澳大利亚的一个近期的病例提示，这种疫苗可能会引起罕见但严重的副作用，包括过敏性休克和神经系统损害。

A recent case series from Australia raised concerns that the vaccine might cause rare but serious side effects, including allergic shock and damage to the nervous system.

youdao

例如，在2002年，制药公司Elan因为15个病人出现中枢神经系统肿胀而停止了对不同疫苗的试验。

In 2002, for example, the pharmaceutical company Elan halted trials of a different vaccine after 15 patients suffered swelling of the central nervous system.

youdao