Many immigrants are susceptible to vaccine-preventable diseases upon arrival in Canada. Evidence indicates that 30%–50% of new immigrants are susceptible to tetanus. Immunity against diphtheria is low among immigrants – 35% to 50%.¹ Vaccinating children against diphtheria, pertussis, tetanus and polio have dramatically reduced the incidence of these illnesses (92% to 99.9%) and have almost completely eliminated resulting deaths.¹

¹Pottie K, Greenaway C, Feightner J, et al. Evidence-based clinical guidelines for immigrants and refugees. CMAJ 2011;183:E824-925.