With two more persons succumbing to H1N1 influenza in the last three days, the swine flu toll has risen to five in Karnataka since February, health officials said. The latest victims were a 32-year-old woman from Kolar and a 45-year-old man from Chikballapura, officials said. Since January, 531 samples were tested for H1N1, out of which 82 tested positive. "Out of these 82 patients, five have succumbed to the disease," they said.