制药商仍然要生产治疗普通季节性流感的三价流感疫苗，如今又多了项任务，那就是生产对抗致死性H1N1型流感的疫苗。

Manufacturers have still had to produce the usual “trivalent” vaccine for this year’s seasonal flu, plus a wholly different vaccine for the more deadly H1N1 strain.

youdao

制药商仍然要生产治疗普通季节性流感的三价流感疫苗，如今又多了项任务，那就是生产对抗致死性H1N1型流感的疫苗。

Manufacturers have still had to produce the usual “trivalent” vaccine for this year’s seasonal flu, plus a wholly different vaccine for the more deadly H1N1 strain.

youdao