This following document is the West Nile Virus - Preparedness and Prevention Plan for Ontario – 2006, a technical reference document for Ontario’s 36 Health Units to assist with the implementation of the Control of West Nile Virus Regulation – O.R. 199/03), made under the Health Protection and Promotion Act. It is referred to in this document as ‘the Plan’. The material content in the ‘Plan’ incorporates the cumulative experience of public health with vector borne diseases and their control across North America with relevance to Ontario’s topography, climate, vector species and vast natural resources, with particular emphasis on our ongoing communication with the public Health Units (HUs) of Ontario.

Under the Control of West Nile Virus Regulation (see Appendix V), the local Medical Officer of Health (MOH) is required to conduct a risk assessment of the conditions pertaining to WNV in the Health Unit. This risk assessment will identify the relative risk of human infection from WNV using surveillance information based upon dead birds, mosquito information, equine infections along with any human cases, and may include a number of other germane information elements. Completion of the risk assessment in accordance with the Regulation will offer guidance to the appropriate WNV control activities for the Medical Officer of Health (MOH), and if needed, provides a review of appropriate vector (mosquito) control activities (i.e. larval/adult mosquito control measures) and their effective application. Further, the Regulation requires the local municipality to which the risk assessment applies to undertake those measures necessary for vector and disease control when directed to do so by the Medical Officer of Health.

In addition, under the Control of West Nile Virus Regulation, the Medical Officer of Health is also required to maintain a means to record, investigate, and report any confirmed or likely adverse or unintended human health effects attributed to mosquito control actions, and to report any non-human environmental adverse effects that he/she knows about to the Ministry of the Environment and/or other relevant local or provincial authorities.

The full document and appendices are available for download below :

Note that this plan is subject to change during the 2006 season.

FULL DOCUMENT – With appendices West Nile Virus Preparedness and Prevention Plan Ontario - 2006 88 pages | 554 kb | PDF format

MAIN DOCUMENT – Without appendices West Nile Virus Preparedness and Prevention Plan Ontario - 2006 51 pages | 376 kb | PDF format

APPENDICES Appendix Ia Human Surveillance Case Definition 6 pages | 175 kb | PDF format

Appendix Ib Health Unit Notification to Central Public Health Lab 1 page | 133 kb | PDF format

Appendix Ic Health Unit Notification to Canadian Blood Services 1 page | 100 kb | PDF format

Appendix Id Health Unit Notification to Trillium Gift of Life Network 2 pages | 126 kb | PDF format

Appendix IIa Health Unit Codes 1 page | 130 kb | PDF format

Appendix IIb Mosquito Species to be Identified and Reported 1 page | 130 kb | PDF format

Appendix IIc Mosquito Species Proven Positive for WNV, EEE or Dengue 1 page | 133 kb | PDF format

Appendix III The Handling and Submission of Avian Specimens 6 pages | 133 kb | PDF format

Appendix IV Mandatory Health Programs and Services Guidelines 2 page | 4 kb | PDF format

Appendix V Ontario Regulation 199/03 2 pages | 156 kb | PDF format

Appendix VIa Summary Report: WNV Mosquito Control Malathion-Related Illness 2 pages | 137 kb | PDF format

Appendix VIb Malathion TOX Q & A Circular 8 pages | 139 kb | PDF format

Appendix VIc WNV Malathion Application: Human Exposure and Adverse Effects Incident Report 2 pages | 125 kb | PDF format

Appendix VII Factors for Consideration for Adult Mosquito Control through Ultra-Low Volume (ULV) Application 1 page | 4 kb | PDF format

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