The immunisation cold chain. Why is it so hard to get right?

Although the standards for vaccine storage required for accreditation of general practices, and the Guidelines for Australian Immunisation are widely available, all research to date suggests that in Australia compliance with these standards has not been readily achieved.

The New South Wales Central West Division of General Practice (NSWCWDGP) and the Public Health Unit of the New South Wales Mid Western Area Health Service (NSW MWAHS) worked together from 1999 to 2001 to produce an intervention that would gather information about current vaccine storage, and provide practical help to storage sites which were not complying with accepted standards.

Cooperation between a general practice division and the public health unit can deliver coverage of 100% of vaccinators in a large geographic region. We have demonstrated that the lack of a designated person to take on ultimate responsibility for vaccines at a site is associated with less chance of achieving safe storage. Persistent difficulty in 'getting it right' has been documented. One new measure we have suggested and trialled is the installation of affordable commercial thermostats in the domestic refrigerators that are now widely used. Another is the piloting of a general practice division administered mailout program of temperature dataloggers to document the ongoing compliance of vaccine storage sites with accepted standards.