Titolo: A Sri Lankan nurse injects a vaccine aga

Descrizione: A Sri Lankan nurse injects a vaccine against the H1N1 or swine flu influenza at a hospital in Colombo on December 29, 2010. The Health Ministry said swine flu has killed 22 people and infected 371 people over the past two months. It blamed recent heavy rains and the onset of cold weather for spreading the influenza that affects peoples' lungs and triggers off a strain of viral pneumonia. AFP PHOTO/Ishara S. KODIKARA (Photo credit should read Ishara S.KODIKARA/AFP/Getty Images)

Crediti immagine: AFP/Getty Images - © 2011 AFP