"Our focus is on protecting our patients, putting patients first."
He said Ministry of Health surveillance suggested influenza hadn't yet peaked this winter.
Dr Davis said last year's flu season went on until October and it wasn't too late for locals to get vaccinated.
"To help ensure people have the protection they need we are extending the funded vaccination season until August 31."
Ministry of Health figures show 1,188,152 vaccines had been distributed nationwide at July 16, close to the target of 1.2 million.
According to the Institute Of Environmental Science and Research's latest influenza weekly update, 168 consultations for flu-like illnesses were reported from 56 general practices nationwide in the week to July 12. Hawkes Bay had the highest consultation rate.