Today, because of vaccines, smallpox no longer exists outside the lab.

今天，由于疫苗的存在， 实验室外不再存在天花。

On Thursday, the European Center for Disease Prevention and Control said all suspected cases should be isolated and that high-risk contacts should be offered the smallpox vaccine.

欧洲疾病预防控制中心周四表示，应隔离所有疑似病例，并给高危接触者接种天花疫苗。