Kolkata, Aug 20 - Three mere people tested positive for swine flu in West Bengal Thursday, taking the total number of affected cases in the state to 64, health officials said.

'Today (Thursday) we have only three positive swine flu cases. With this the figure goes up to 64 so far,' state's nodal officer for swine flu Tapas Sen told IANS.

Meanwhile, a two-and-a-half year old boy, who was on ventilator support, was moved out of the intensive care unit Thursday as his condition further improved.

'The boy, Akash Chowdhury, is gradually responding to the treatment and we have taken him out of the ventilator support today (Thursday),' Sen said.

Akash was under treatment at the state-run R.G. Kar Medical College and Hospital.

Sen said that 11-year-old Sneha, daughter of Soruav Ganguly's elder brother, was also recovering and making satisfactory progress at the swine flu isolation ward of the state-run M.R. Bangur Hospital. She had tested positive for swine flu Monday.