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Pamphlet
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Hepatitis B Surveillance in South Australia: QSR 2000 No. 15

Hepatitis B Medical Notification 01/01/00 - 31/03/00

During the first quarter of 2000, 51 hepatitis B medical notifications were received. Of these, only one was an acute clinical case of hepatitis B infection (Tables 3.1, 3.2). A further ten were reports of chronic carriers of greater than twelve months duration, who had been previously diagnosed but not notified. Reports of antigen positivity of uncertain duration accounted for 40 cases (Table 3.3).

Of the 40 reports of antigen positivity of uncertain duration, 20 tested surface antigen positive for the first time this quarter and the testing history was unknown for the remaining 20 cases. Among the 20 individuals who tested surface antigen positive for the first time, but were not acute cases, the racial origin of 12 was reported as Asian (Table 3.4).

The number of hepatitis B surface antigen tests performed by laboratories for this quarter is shown in Table 3.5.

Tables

Table 3.1 Acute hepatitis B infection, 01/01/00 - 31/03/00.
Exposure category by sex.

Table 3.2 Acute hepatitis B infection, 01/01/00 - 31/03/00.
Age group by sex.

Table 3.3 Hepatitis B infection, 01/01/00 - 31/03/00.
Case category by sex.

Table 3.4 Individuals who tested hepatitis B surface antigen positive for the first time, 01/01/00 - 31/03/00. Race by sex.

Table 3.5 Summary of hepatitis B surface antigen tests, 01/01/00 - 31/03/00. Laboratory by sex.

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