The WHO's Director-General,Margaret Chan, has expressed concern there is not a good process in place to produce enough vaccine against the virus.

VOA: special.2009.08.18

Agency chief Margaret Chan has expressed concern there is not a good process in place to produce enough vaccine against the virus.

VOA: special.2009.08.05

"That's simply not good enough." "They need to start using words that describe these things and what they've done about it."

VOA: standard.2010.04.01

While the money is good, it's not quite good enough to live on full time.

VOA: standard.2010.08.03