A study published in the Canadian Journal of Public Health has found that senior citizens in Calgary and Edmonton, the two biggest cities in the province of Alberta, are more likely to receive an immunization against influenza than their rural peers and less likely to be hospitalized as a result of the disease. The study also showed that the cost of vaccination is far less than that of treatment for the disease, including hospital stays. The cities were able to vaccinate 77 percent of those over the age of 65 years from 1999 to 2001, while rural immunization rates for the population reached just 30 percent.