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Freedom from Want: The H1N1. H1N1 now the dominant virus strain Not the same as seasonal influenza Large populations susceptible to infection Vulnerable groups at risk Higher risk of hospitalization and death: health services challenged Implications for the developing world
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Freedom from Want: The H1N1 • H1N1 now the dominant virus strain • Not the same as seasonal influenza • Large populations susceptible to infection • Vulnerable groups at risk • Higher risk of hospitalization and death: health services challenged • Implications for the developing world • Dangers of an excessive response: difficulties to grade pandemics by severity. Sources: WHO/ European Center for Disease Prevention and Control
Clinicalsymptoms Asymptomatic Seasonal influenza compared to pandemic — proportions of types of cases Deaths Requiring hospitalisation Clinicalsymptoms Deaths Requiring hospitalisation Asymptomatic Seasonal influenza Source: ECDC Pandemic
Pandemic Influenza PhasesH1N1:Phase 6 Source: WHO