Earlier Tuesday, Israel Health Ministry decided to raise the preparedness level for swine flu from Phase 3 to Phase 4.

Meanwhile, signs were posted at Israeli Ben-Gurion International Airport, warning travelers arriving from Mexico to be on the alert for flu-like symptoms within a week of their return and to get medical help in that case.

In a bid to prevent the virus from spreading, Israeli Health Ministry reported Saturday evening that all hospital managers, as well as district doctors, had been briefed on the signs of the new swine flu virus and on preparedness procedures.

On Monday, the World Health Organization raised its global alert level from Phase 3 to Phase 4, signaling the swine flu virus was spreading from human to human in community outbreaks, but it stopped short of declaring a full-blown pandemic.

According to the World Health Organization's program for dealing with possible influenza pandemics in such cases, Phase 3 deals with preparedness for only sporadic infection of humans by animals, whereas Phase 4 deals with readiness for virus spread caused by sustained human to human transmission.

-- Click for more news in Tech Max >>

Editor:Yang Jie