A vaccinologist is calling for people to keep getting the flu jab, despite a rather low number of cases.
The flu season is usually at its peak during July, but it has been quieter than previous years.
Dr Helen Petousis-Harris from the University of Auckland says even in mid-July, it is still early days.
"I don't think it's possible to tell what the rest of the season is going to do. You prepare for the worst and hope for the best."
The vaccine covers four different viruses currently circulating the globe.
Dr Petousis-Harris from the University of Auckland says it is not unusual to have a slow start to the season.
"Flu seasons vary - each year brings its own style of flu… They can also start at slightly different times."
She says pregnant women are especially urged to get the jab to protect their unborn baby.