Influenza H1N1 Introduction. What is Influenza A H1N1?  Influenza virus  Family Orthomyxoviridae  2 important surface proteins  Haemagglutinin (H)

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Presentation transcript:

Influenza H1N1 Introduction

What is Influenza A H1N1?  Influenza virus  Family Orthomyxoviridae  2 important surface proteins  Haemagglutinin (H)  Neuraminidase (N)  Frequent changes in surface proteins causes antigenic drifts and antigenic drifts

So what?  Changes in viral make up can create a completely new strain of virus  No immunity  No previous infection  No vaccination  Faster spread of disease among the population

Epidemiology Center for Disease Control and Prevention, 2009

Epidemiology Center for Disease Control and Prevention, 2009

Epidemiology  Those who are hospitalized have underlying co-morbid conditions  Asthma, diabetes, heart disease and pregnancy – greater risk of serious flu-related complications

Epidemiology Center for Disease Control and Prevention, 2009

Pathophysiology  Video

What are we doing?  DOH H1N1 website  Disaster response protocols  Surveillance of travelers  Basic hand hygiene campaign

 CDC Dr. Joe Bresee

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