The relatives of family members who are unable to move or talk after eating wild boar will land in New Zealand from southern India late tomorrow night.
A Waikato DHB spokeswoman confirmed husband and wife Shibu Kochummen, 35, and Subi Babu, 32, and Kochummen's 62-year-old mother, Alekutty Daniel are still in a serious but stable condition in a ward at Waikato Hospital.
The trio fell ill nine days ago from what is thought to be caused from eating contaminated wild boar and have been responding to botulism treatment.
The exact cause of their illness may not be confirmed for several weeks as samples have been sent to Queensland for testing.
Meanwhile the couple's two children, aged 7 and 1, are being cared by members of their church in Hamilton while they wait for relatives to arrive from India.