An annual influenza vaccination is the most effective way to avoid this potentially dangerous illness.

年度流感疫苗是预防这种危险疾病最有效的办法。

She tells her audience that the virus was manufactured in a laboratory, and that medical workers inject it into people through influenza vaccinations.

她告诉网友，该病毒是实验室制造出来的，医院人员通过流感疫苗将其注射到人体内。