摘要：In 2004, 60 diseases and conditions were nationally notifi able in Australia. States and Territories reported a total of 110,929 cases of communicable diseases to the National Notifi able Diseases Surveillance System (NNDSS): an increase of 4 per cent on the number of notifi cations in 2003. In 2004, the most frequently notifi ed diseases were sexually transmissible infections (46,762 cases; 42% of total notifi cations), gastrointestinal diseases (25,247 cases; 23% of total notifi cations) and bloodborne diseases (19,191 cases; 17% of total notifi cations). There were 13,206 notifi cations of vaccine prevent-able diseases, 6,000 notifi cations of vectorborne diseases, 1,799 notifi cations of other bacterial infections (includes, legionellosis, leprosy, meningococcal infections and tuberculosis) and 877 notifi cations of zoonotic diseases
