Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 19, Number 1—January 2013
Research

Novel Framework for Assessing Epidemiologic Effects of Influenza Epidemics and Pandemics

Carrie ReedComments to Author , Matthew Biggerstaff, Lyn Finelli, Lisa M. Koonin, Denise Beauvais, Amra Uzicanin, Andrew Plummer, Joe Bresee, Stephen C. Redd, and Daniel B. Jernigan

 Author affiliation: Centers for Disease Control and Prevention, Atlanta, Georgia, USA

Main Article

Table 2

Scaled measures of transmissibility and clinical severity for the refined assessment of pandemic influenza effects

Parameter no. and description Scale
1 2 3 4 5 6 7
Transmissibility
1. Symptomatic attack rate, community, % <10 11–15 16–20 21–24 >25
2. Symptomatic attack rate, school, % <20 21–25 26–30 31–35 >36
3. Symptomatic attack rate, workplace, % <10 11–15 16–20 21–24 >25
4. Household secondary attack rate, symptomatic, % <5 6–10 11–15 16–20 >21
5. R0: basic reproductive no. <1.1 1.2–1.3 1.4–1.5 1.6–1.7 >1.8
6. Peak % outpatient visits for influenza-like illness
 1–3
 4–6
 7–9
 10–12
 >13
Clinical severity
1. Case-fatality ratio, % <0.02 0.02–0.05 0.05–0.1 0.1–0.25 0.25–0.5 0.5–1 >1
2. Case-hospitalization ratio, % <0.5 0.5–0.8 0.8–1.5 1.5–3 3–5 5–7 >7
3. Ratio, deaths: hospitalization, % <3 4–6 7–9 10–12 13–15 16–18 >18

Main Article

Page created: December 20, 2012
Page updated: December 20, 2012
Page reviewed: December 20, 2012
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
file_external