1. Gust ID. Epidemiological patterns of hepatitis A in different parts of the world. Vaccine 1992;10S:56–58.
2. Statement on the prevention of hepatitis A infections. CCDR 1994;20:133–36,139-43.
3. National Notifiable Diseases Registry System. Laboratory Centre for Disease Control, Health Protection Branch, Health and Welfare Canada, 1986–1997.
4. National Advisory Committee on Immunization. Canadian Immunization Guide. Health Canada. Canadian Medical Association, 1998.
5. Benenson AS (Ed.). Control of Communicable Diseases Manual 16th ed. Washington, DC: American Public Health Association, 1995;221–27.