Haemophilus influenzae type B (Hib) infection (invasive) case definition

This document contains the case definitions for Haemophilus influenzae type B infection which is nationally notifiable within Australia. This definition should be used to determine whether a case should be notified.

Page last updated: 29 July 2014

Haemophilus influenzae serotype b (Hib) infection (invasive only) v1.1

Version Status Last reviewed Endorsement date Implementation date

In Laboratory definitive evidence, after “Isolation” Add “or detection” and Change “at an approved reference laboratory” to “at a jurisdictional or regional reference laboratory”

Deleteor Detection of Hib antigen in cerebrospinal fluid when other laboratory parameters are consistent with meningitis”.

CDWG 27 February 2014 CDNA 13 March 2014 1 July 2014
1.0 Initial CDNA case definition (2004).


Only confirmed cases should be notified.

Confirmed case

A confirmed case requires laboratory definitive evidence only.

Laboratory definitive evidence

Isolation or detection of Haemophilus influenzae type b (Hib) from a normally sterile site where typing has been confirmed at a jurisdictional or regional reference laboratory.

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