The Communicable Disease Control Manual seeks to inform and assist those at the frontline of public health action, namely the medical officers of health, health protection officers and staff at public health units. The primary purpose of the manual is to describe the standard practice that public health services would normally follow in regard to the prevention and control of notifiable diseases (specific communicable diseases that are required to be notified by medical practitioners and laboratories under the Health Act 1956 and Tuberculosis Act 1948).
Most of the information is contained within disease-specific chapters. This includes case definitions and laboratory tests required for case confirmation. Some important general considerations are outlined below, and in the appendices.
Actions, policies and legislation for preventing and controlling communicable diseases develop and change with time. This manual has to keep pace with such changes, and for this reason it is now being published electronically and as a series of individual chapters, one for each disease. This will allow for individual disease chapters to be reviewed and updated separately in accordance with new evidence and best practice. This edition of the manual follows the format of earlier editions with some considered adjustments to content in addition to long-awaited updates. It includes references and electronic links to other guidelines and material for those requiring more detail.
The manual should be used in conjunction with other best practice guidelines, including the Immunisation Handbook. Users are also encouraged to supplement the content of this manual with existing evidence-based effective practices at their local level and to bring such practices forward for broader consideration and possible incorporation into standard procedures at a national level. Similarly, while the protocols set out in the manual reflect normal expectations, there will be circumstances from time to time that may require adaptation based on the professional judgement of the local medical officer of health (for example, in a significant outbreak or epidemic).
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In July 2016, an updated Legionellosis chapter (PDF, 56 KB) was published. The key changes in the new chapter are:
- updates to the section on the clinical description of infection with Legionella
- updates to the section on laboratory tests for diagnosis, including the addition of details about detection of Legionella species nucleic acid as a definitive laboratory evidence for a confirmed case.
Middle East respiratory syndrome
The Middle East respiratory syndrome chapter that was published in February 2015 has been superseded by the information for health professionals at Middle East Respiratory Syndrome Coronavirus.
In December 2014, an updated Rheumatic Fever chapter (PDF, 197 KB) was published. The key changes in the new chapter are:
- The removal of the requirement to notify Rheumatic Heart Disease under the age of 20.
- Alignment of the case definitions to be consistent with the New Zealand Heart Foundation Guidelines and the EpiSurv case report form.
- The removal of the information relating to group A Streptococcus (GAS) to focus the chapter on Acute Rheumatic Fever (ARF).
- The contact tracing section has been updated.
- Information has been included on the notification of cases and the use of registers.
In September 2014, a revised Polio Response Plan (PDF, 117 KB) was published by the Ministry of Health. While this chapter and the Plan agree in most respects, in any areas of variance the Response Plan takes precedence. The Polio chapter in this manual is currently being updated to reflect the information in the Response Plan.