The W.H.O.has an influenza warning system in which phase six means that a pandemic is taking place.

VOA: special.2009.06.10

"But if you look into the Mekong delta, for example in Vietnam, it has shown the 30-year cycle, but the phase and amplitude is going up and then going up like that."

VOA: standard.2009.12.21

"It is our intention to conclude this phase of our discussions in the very near future, within the timeframes that you suggest, to enable us to move on to the more important phase,".

VOA: standard.2009.09.14