Editor's note: Click the "play" button below to view the updates and join the conversation, or to replay the live blog when it's on standby.
The World Health Organization has raised its pandemic alert level for the second time this week.
Director-General Margaret Chan raised the pandemic alert level to 5 in response to the spreading swine flu virus. Phase 5 means that there is human-to-human spread of the virus in at least two countries, and sends a strong signal that a pandemic is imminent. Phase 6 is a full-blown pandemic.
Follow the live developments here and comment on the emerging global spread of the virus.
