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Pandemic Influenza Plan - Questar III

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Each section includes a description of the activities to be undertaken by pandemic period,<br />

using the World Health Organization’s classification system (Table below). Activities are<br />

designated as to whether they are the role of the state health department, local health<br />

department and/or providers and public health partners.<br />

World Health Organization <strong>Pandemic</strong> Periods/Phases<br />

Interpandemic<br />

Period<br />

<strong>Pandemic</strong> Alert<br />

Period<br />

<strong>Pandemic</strong><br />

Period<br />

Phase 1<br />

Phase 2<br />

Phase 3<br />

Phase 4<br />

Phase 5<br />

Phase 6<br />

No new influenza virus subtypes in humans. An<br />

influenza virus subtype that has caused human<br />

infection may be present in animals. If present in<br />

animals, the risk of human infection or disease is<br />

considered to be low.<br />

No new influenza virus subtypes have been<br />

detected in humans. However, a circulating<br />

animal influenza virus subtype poses a substantial<br />

risk of human disease.<br />

Human infection(s) with a new subtype, but no<br />

human-to-human spread, or at most rare instances<br />

of spread to a close contact.<br />

Small clusters(s) with limited human-to-human<br />

transmission but spread is highly localized,<br />

suggesting that the virus is not well adapted to<br />

humans.<br />

Larger cluster(s) but human-to-human spread is<br />

still localized, suggesting that the virus is<br />

becoming increasingly better adapted to humans,<br />

but may not yet be fully transmissible (substantial<br />

pandemic risk).<br />

<strong>Pandemic</strong> phase: increased and sustained<br />

transmission in general population.<br />

<strong>Pandemic</strong> influenza planning and preparedness activities should build upon response<br />

planning efforts for other emergencies, such as a smallpox recurrence, chemical spills,<br />

and natural disasters. In addition, efforts to prepare for an influenza pandemic will<br />

significantly enhance New York State’s ability to respond to other emergencies and<br />

disasters.<br />

This version of the New York State Department of Health’s <strong>Pandemic</strong> <strong>Influenza</strong> <strong>Plan</strong><br />

reflects currently available scientific knowledge regarding the potential for an influenza<br />

pandemic, the expected ramifications on New Yorkers, and the most effective strategies<br />

and tactics to support our response. It is important to understand that this plan will be<br />

updated and revised regularly as additional information and guidance become<br />

available. Also, during a pandemic, guidance in this document may change. For<br />

February 7, 2006<br />

iii

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