The United Nations public-health agency raised its global alert to phase 4 from phase 3. The change recognizes that the new A/H1N1 virus spreads from person to person, and signals that governments should prepare for outbreaks. Phase 6 is a pandemic.
The swine flu virus first detected in Mexico can no longer be contained and countries should focus on mitigating its effects, a top UN official said.
please visit our sponsors: