Copyright © 2009 Associated Press - Tutti i diritti riservati.
Commuters wear masks as a precaution against ...
AP - Mer 4 Nov - 15.13Commuters wear masks as a precaution against flu while riding a bus in the western Ukrainian city of Lviv, Wednesday, Nov. 4, 2009. Russia and Slovakia have tightened their borders with Ukraine as the World Health Organization began investigating a suspected swine flu outbreak. The European Union says it is coordinating closely with health experts in Ukraine to help it cope with a suspected swine flu outbreak. (AP Photo/Sergei Grits)
