Phase four means that a virus has gained the ability to cause community-level outbreaks.

VOA: special.2009.05.06

As of Tuesday officials had not yet announced a change from phase five.

VOA: special.2009.06.10

Phase six would mean a global pandemic.

VOA: special.2009.05.06

"We did our job. A significant phase has been passed through with as little harm done as conceivably could have been done under the circumstances.

VOA: standard.2010.04.21

The WHO's Phase 5 threat warning signals that a global pandemic could be imminent, but has yet to develop, with human-to-human transmission occurring in many geographical locations.

VOA: standard.2009.04.30

a medium-term phase out of what they call inefficient fossil fuel subsidies, although this would take into account what they call vulnerable groups and their development needs.

VOA: standard.2010.06.27

In contrast,a light bulb has much more impact in the use phase, where it's using the energy, and where you can reduce that with more efficient lighting technologies,"

VOA: standard.2009.03.30

At each stop, I have emphasized president Obama's message that our strategy working with you may be in a new phase, but we pledge our full and continuing commitment to Iraq and the Iraqi people.

VOA: standard.2009.04.25

"This change to a higher phase of alert is a signal to governments, to ministries of health and other ministries, to the pharmaceutical industry and the business community that certain actions should now be undertaken with increased urgency, and at an accelerated pace,"

VOA: standard.2009.04.29