Phase five is marked by human-to-human spread of the virus into at least two countries in the same area of the world.

VOA: special.2009.05.06

But they were spread over a wide area of southern Pennsylvania.

VOA: special.2009.11.05

Saturday afternoon, just north of the protest area, the Thai army spread razor wire and set up checkpoints.

VOA: standard.2010.05.15