There's a huge wait for the deadly Meningococcal B vaccine for South Aussie kids.
Families are being forced to register on waiting lists as long as 125 people as global demand for the drug continues to soar.
Some are being forced to wait up to 5 months for their children to be vaccinated.
Children under 12 months need 4 shots while adolescents just get 2, around 2 months apart.
Adelaide Uni and SA Health will vaccinate up to 60,000 year 10, 11 and 12 students.