What should governments do to prepare for the future potential pandemic according to the text?

What should governments do to prepare for the future potential pandemic according to the text?

A.Invest in disease surveillance.

B.Overcome technical, diplomatic, and budgetary obstacles for development of safe, effective vaccines and antivirals.

C.Make the antivirus and the vaccine available and affordable for people who in greatest need.

D.All of the above.

点击查看答案