Surat: Swine flu cases are on a rise in Gujarat's Surat. The total number of swine flu patients in the monsoon season has reached 53. Presently, 28 patients are admitted to hospitals and among them 4 are on ventilators, others are stable. Surat Municipal Corporation, Deputy Commissioner, Dr Ashish Naik said, "After Ganesh Visarajan there has been an increase in swine flu positive cases." There were 22 patients still undergoing treatment for swine flu in different hospitals of the city.