THE PRIORITY OF HEPATITIS B VACCINATIONS IN CANADA The increase in the number of children attending schools in Canada and the potential for transmission of viral infection in that environment is a problem of great size. A virus is defined as "a morbid principle, or a poisonous venom, especially one capable of being introduced into another person or animal" in The Shorter Oxford English Dictionary. Due to their miniscule size, it was not until 1885 that …showed first 75 words of 1550 total…

…showed last 75 words of 1550 total…of immigrants into Canada, of whom the vast majority is from high-endemic countries, makes this strategy of inoculating elementary students lose the purpose. The bottom line is that the risk of chronic hepatitis is high before the age of five, and very low after the age of ten. Hence, if the vaccination program had been directed at new-borns instead of elementary schooled children, the end effectiveness of such an action would have justified the means.