A recent Schick survey in the Wellington Health District.
D000293:Adolescent; D000367:Age Factors; D002353:Carrier State; D002648:Child; D002675:Child, Preschool; D004165:Diphtheria / Q000517:prevention & control*; D006801:Humans; D009520:New Zealand; D044469:Racial Groups; D012882:Skin Tests