The child died while Victoria suffers from a huge increase in summer flu.
More than 2865 cases of influenza have been reported in Victoria during the first ten weeks of the year, which is 122 percent more than in the same period last year.
Dr. Brett Saton told Neil Mitchell that a summer flu epidemic took life from a Victorian child.
"It's a reminder to all of us that we do not just protect ourselves when we get a vaccine, we are helping to protect those in danger, including children," he said.
March and April are usually the months with the least number of flu cases.
"It's definitely one of the biggest summer seasons we've ever seen," said Dr. Sutton.
Last year there were about 11,000 reported cases of flu, while in 2017 there were 50,000 cases.
Dr Sutton said that many flu cases during the summer do not necessarily mean more than average winters.
"We are monitoring this much more this year, but that does not mean that we will have a better year than the flu," he said.
Dr Sutton urged pregnant women to vaccinate during the summer, but said the general population should keep the vaccine by mid-April.