Respiratory syncytial virus (RSV) is a common and highly contagious virus that infects the airways and lungs. While it often causes mild, cold-like symptoms in older children and adults, it can lead to serious illness in babies, older adults, and people with weakened immune systems. RSV can cause bronchiolitis (inflammation of the small airways) and pneumonia, and it is the leading cause of infant hospitalisation in Australia. Vaccination during pregnancy helps protect newborns by passing on antibodies, reducing the risk of severe RSV illness in infants under six months by around 70%.
Adult RSV Vaccination
The maternal RSV vaccine is available year-round under the National Immunisation Program. It is recommended for pregnant women between 28 and 36 weeks of gestation and provides passive protection to newborns through the transfer of antibodies across the placenta, helping protect infants for up to six months after birth.
Infant RSV Vaccination
The Victorian infant program will run again from April to September 2026, offering free RSV protection for:
- infants up to 8 months old whose mothers did not receive the maternal vaccine at least two weeks before birth, and
- infants up to 24 months old who have additional risk factors for severe RSV disease.
To find out more visit the Better Health Channel