Alaya's last nine days were spent in Christchurch Hospital before she died from whooping cough on November 10.
Last night the grieving parents said they had not known how susceptible young children were to the deadly disease.
"When we got to bring her home she looked healthy to us and we didn't really guard her in that sense," Ms Pamata said.
"We didn't realise how common [whooping cough] was or how serious it was.
"That's probably my biggest regret, not keeping her away from people for a couple of months."
This week the Government announced free whooping cough vaccines would be available to all pregnant women from January 1 as the disease spreads across the country.
There have been 6700 notified cases of whooping cough since August last year, of which more than 200 were babies aged 12 months or younger requiring hospital treatment.
Alaya is reported to be the second baby in New Zealand killed by whooping cough this year.
The free vaccination from January 1 will last until the outbreak finishes, Health Minister Tony Ryall said.
All pregnant women can receive the vaccine from their GP between 28 and 38 weeks of pregnancy.
A number of district health boards have been offering the vaccine free to pregnant women for the past few months.
Ms Pamata said she faced complications during her pregnancy that prevented her from having the whooping cough vaccine.
Alaya was born at 34 weeks and Ms Pamata needed a large tumour removed at the same time.
She said Alaya's first vaccinations would have been at 6 weeks old.
Whooping cough:
6700 cases since August last year
More than 200 babies aged under 1 required hospital treatment
Free vaccines for pregnant women from January 1
Source: Ministry of Health
- APNZ
