†N denotes the number of respondents to the question. +child under 18. #population 25 years and over. *p<0.05; *** p<0.001 based on Chi Squared test (for discrete variables) and t-test (for continuous
A simple susceptible–infectious–removed epidemic model for smallpox, with birth and death rates based on historical data, produces oscillatory dynamics with remarkably accurate periodicity. Stochastic