Info Petani - The WHO has six phases of pandemic alert to access the potential for new global flu outbreak.
Phase 1:
There are no viruses circulating in animals that have been reported to cause infections in humans.
Phase 2:
An animal flu virus has caused infections in human in the past and is considered to be a potential pandemic threat.
Phase 3:
An animal or mixed animal-human virus has caused occasional cases or small clusters of disease, but the virus does not spread easily.
Phase 4:
The new virus can cause sustained outbreaks and is adapting itself to human spread (April 28, 2009).
Phase 5:
The virus has spread into at least two countries and is causing even bigger outbreaks (April 30, 2009)
Phase 6:
Outbreaks in at least two regions of the world; the pandemic is under way. dan sekian itulah artikel Six phases of swine flu pandemic terimakasih ^_^
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