Keflemariam, Yohannes, Paul Roche, Alan Hampson, Megge Miller, and Jenean Spencer. “Annual Report of the National Influenza Surveillance Scheme, 2003”. Communicable Diseases Intelligence 28 (June 30, 2004): 160–168. Accessed April 3, 2026. https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2237.