Thrombotic thrombocytopaenic purpura became nationally reportable in August 1998. NN Not Notifiable. Selected National Notifiable Diseases Surveillance System reports, and historical data 1 1. The historical data are the averages of the number of notifications in the corresponding 4 week periods of the last 3 years and the 2 week periods immediately preceding and following those. State or Territory of postcode, if reported, otherwise State or Territory of reporting laboratory.
Totals comprise data from all laboratories.
Cumulative figures are subject to retrospective revision, so there may be discrepancies between the number of new notifications and the increment in the cumulative figure from the previous period. A new computer system for processing the virology and serology laboratory reporting scheme dat, was implemented in September 1999. Consequently, cumulative figures may have decreased due to better duplicate processing. Total 3,222 Table 5. Notifications of these diseases are made to State and Territory health authorities under the provisions of their respective public health legislations.