NO AUTHORS LISTED. CDI notice to readers: CDI Editorial Advisory Board; CDI Electronic Distribution; The Australian Childhood Immunisation Register. Communicable Diseases Intelligence, [S. l.], v. 20, p. 13–15, 1996. Disponível em: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/162. Acesso em: 20 jun. 2026.