A Dunedin baby with meningoccocal disease has been discharged from hospital and has made a ''full recovery'', health authorities say.
The baby did not have the C strain, which had infected three adults, but had the even more unusual W135 strain, Public Health South medical officer of health Dr Marion Poore said this morning.
An ''error'' led to previous incorrect reports the baby had the C strain.
Another patient, in Dunedin Hospital, a man in his 40s, who was linked to the Christchurch cases, was recovering well from septicaemea caused by meningoccocal C.
Dr Poore said the baby's infection was not linked in any way to the adult cases, including Fulton Hogan chief executive Bill Perry, 48, who died on Saturday, after he was taken to Christchurch Hospital that morning.
Another of those affected is a man who is also employed at Fulton Hogan.
Canterbury medical officer of Health Alistair Humphrey said the man, in his 50s, had been at the same company meetings as Mr Perry last week.
"As a precaution, all other attendees of the meeting and those in direct contact with them have been administered treatment and advised of the symptoms of meningococcal disease," he said.
"Canterbury and Southern District Health Boards are closely monitoring the situation."
A woman in her 40s has also contracted the strain and is in Christchurch Hospital.
Mr Humphrey said Mr Perry may not have been the source of the strain.
"Meningococcal C characteristically affects young adults not people in their middle age, so one of the lines we are looking at is whether or not there is another source to this illness," he told Radio New Zealand.
"It might be through some teenagers getting together over the holidays."
Mr Humphries said the diseases is contracted through "droplets spread" sharing food, drinks or sneezing.
He said the symptoms were "vague", such as bad headaches, stiff necks, and lights becoming unpleasant.
- with the New Zealand Hearld
