A Wanganui teenager is in a stable condition in Wanganui Hospital with bacterial meningitis.
The girl, a pupil at Wanganui Collegiate School, was admitted to hospital on Thursday with the first case of meningococcal disease in the region this year.
She was in a serious condition yesterday morning, but bymid-afternoon her condition had improved to stable.
Whanganui medical officer of health Patrick O'Connor said in response to the girl's illness, nine close contacts in Wanganui were given antibiotics, and Taranaki Public Health gave antibiotics to a further 10 contacts in Hawera yesterday.
Dr O'Connor said meningococcal disease was caused by a bacteria which could be passed from one person to another through saliva. He said activities such as kissing or sharing drinks could transmit the bacteria.
"Most people with the bacteria do not get unwell. It is thought that about one person in a hundred with the bacteria will get meningococcal disease," he said.
Dr O'Connor said initial symptoms were similar to the flu, but the person could become unwell extremely quickly. The signs of meningitis include fever, vomiting, headache, sore neck and a rash.
"The main message to parents is to see a doctor if your son or daughter is becoming very unwell very quickly," Dr O'Connor said.