Measures taken to prevent spread of virus

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Health authorities are quarantining people who were in close contact with a man surnamed Lü, the second confirmed A/H1N1 flu case on the Chinese mainland.

The Tianjin Municipal Health Bureau says they have found four passengers who were on the same flight AC029 as Lü, including his girlfriend. All four are under a week-long medical observation. Meanwhile, Beijing health authorities have disinfected the hotel that Lü stayed in during his time in the city. Four hotel staff are also under medical observation.