WHO Raises Pandemic Flu Alert Level to Phase 4
Posted April 27, 2009 – 2:03 pm in: 'pandemic potential', WHO, swine flu, world health organizationMexico says the World Health Organization has raised its pandemic alert for swine flu by one level, two steps short of declaring a full-blown pandemic.
Mexico health department spokesman Carlos Olmos confirms the move.
WHO says the phase 4 alert means sustained human to human transmission causing outbreaks in at least one country. It signals a significant [...]