People at greatest risk of severe illness from flu or COVID-19 are being urged to check in with their doctor for vaccinations before winter sets in.
"Influenza is highly contagious and can be deadly for some people, so if you are in one of (the) priority groups, please take advantage of the free flu vaccine as soon as possible," new NSW Premier Chris Minns said.
Flu vaccines are free across the state for children older than six months through to five years, people 65 and over, Aboriginal residents, pregnant women and those with serious health conditions including diabetes, cancer and immune disorders.
Shots are available at GPs and can also be accessed at pharmacies for adults and children over the age of five.
Health Minister Ryan Park encouraged people to ask their pharmacist or GP if they were eligible for a free flu vaccine.
"There is plenty of stock available throughout the state, so now is the time to book your shot," he said.
Chief Health Officer Kerry Chant recommended people over the age of 65 or at a risk of severe illness couple their flu shot with a COVID-19 booster.
All adults are eligible for COVID boosters six months after their last infection or six months after their most recent COVID vaccine, she said.