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Table 11 Comparison of infection attack rates among different influenza viruses

From: Estimating disease burden of a potential A(H7N9) pandemic influenza outbreak in the United States

Description

H1N1 2009 (See Ref [7])

H5N1

(See Ref [6])

Seasonal Influenza (See Ref [33, 34])

A(H7N9) (Current Paper)

Data used

surveillance data from U.S. outbreak

simulated outbreak in U.S. and England

Surveillance data from U.S.

Simulated outbreak in U.S.

Method used

Extrapolation with Correction factors

AB simulation model

Proposed by CDC

AB simulation model and stratification

NPIs (school & workplace closure, case isolation)

yes (with antiviral)

yes (with vaccine and antivirals)

no

yes

Age-groups analysis

yes

yes

yes

yes

Estimated IAR

50%

28% for R 0 = 1.7

5% - 10% in adults

18.78% for R 0 = 1.5

34% for R 0 = 2.0

20% - 30% in children

25.05% for R 0 = 1.8