NSW health authorities are warning of a meningococcal outbreak after five cases were reported in the past week, as the peak season for the disease approaches.
Four people have died and nearly 40 cases have been reported of the contagious disease in NSW so far this year, according to NSW Health.
The organisation's director of communicable diseases, Vicky Sheppeard, on Thursday urged anyone with symptoms of meningococcal disease to go to their doctor immediately.
Symptoms include fever, cold hands and feet, limb pain, nausea, dislike of bright light and a rash, but they may not all happen at once.
Infants, young children and teenagers are most likely to suffer from the disease.
Meningococcal cases are more prevalent late winter and early spring, Dr Sheppeard said.
She warned that common vaccines only cover some strands of the disease, so even those who have been vaccinated should be on the look out.
