As of February 3, he said 11,797 children had been vaccinated against meningococcal W.
"Sadly we had three deaths in Northland last year and therefore we are really focused on ensuring that every single eligible Northland child is given the opportunity to be protected."
There are 22,707 eligible children in Northland.
"The DHB is offering the chance to win five $200 phone data vouchers as incentive for all children to return a signed consent form and receive the vaccination over the next two weeks," Benito said.
"Northland could be the safest place in New Zealand from meningococcal W if we get high enough levels of coverage from the outbreak campaign, so offering the chance to win some phone data might just encourage those undecided to go ahead."