A 14-month-old boy from the mid-north has become the seventh confirmed case of meningococcal disease in Northland.

He was in a comfortable condition in Whangarei Hospital last night with type C meningococcal disease.

A 15-year-old boy, also from the mid-north area, is in a stable condition in the hospital's intensive care unit with suspected meningococcal disease.

Two Northlanders have already died from the disease in the past month.