Human immunodeficiency virus (HIV) (child aged less than 18 months at the time of blood sample collection) case definition

This document contains the case definitions for Human immunodeficiency virus - child aged less than 18 months which is nationally notifiable within Australia. This definition should be used to determine whether a case should be notified.

Communicable Diseases Surveillance

Australian national notifiable diseases case definitions - Human immunodeficiency virus (HIV) - child aged less than 18 months at the time of blood sample collection

Reporting

Both confirmed cases and probable cases should be notified.

Confirmed case

A confirmed case requires laboratory definitive evidence only.

Laboratory definitive evidence

Detection of HIV by at least two virologic assays (nucleic acid testing for proviral DNA; HIV p24 antigen, with neutralisation; virus isolation) on at least two separate blood samples (excluding cord blood).

Probable case

A probable case requires Laboratory suggestive evidence only.

Laboratory suggestive evidence

Detection of HIV by one of the following virologic assays (nucleic acid testing for proviral DNA; HIV p24 antigen, with neutralisation; virus isolation) in one blood sample (excluding cord blood) and no subsequent negative HIV virologic or antibody tests.