Pune: Swine flu has claimed 20 lives in the state since January, nine in March alone, say state health officials.

Among the total number of casualties, Pune district accounts for the highest number (10), said state surveillance officer Pradip Awate. “Six people died of H1N1 influenza within Pune municipal limits while four were from Pimpri-Chinchwad,” he added. Following the recent spurt in cases, doctors have warned citizens to be vigilant and take precautionary measures. “The virus has infected 170 people across the state since January,” said Awate.