Global Mortality from 2009 Pandemic H1N1 Influenza

In a model, the estimated number of respiratory and cardiovascular deaths (284,500) was 15 times higher than the number of deaths reported.

Globally, 18,500 deaths from laboratory-confirmed H1N1 influenza were reported between April 2009 and August 2010. Believing that this number is much too low, researchers used a new approach to estimate the total number of H1N1 influenza–related deaths worldwide during the first 12 months of virus circulation in each country.

Using data from high-, middle-, and low-income countries, they estimated the 12-month cumulative symptomatic attack rate; they then multiplied the rate by the estimated symptomatic case fatality ratio from select high-income countries. They stratified these estimates by age (0–17, 18–64, and >64). Using WHO mortality estimates for lower respiratory tract infections, they calculated a risk group–specific respiratory mort…

Reviewing Author

Mary E. Wilson, MD

Disclosures

Consultant/Advisory BoardOneHealthTrust (formerly Center for Disease Dynamics, Economics, and Policy); Global Health Institute, University of Wisconsin

RoyaltiesUpToDate

Editorial BoardsJournal of Travel Medicine

Mary E. Wilson, MD

Disclosures

Consultant/Advisory BoardOneHealthTrust (formerly Center for Disease Dynamics, Economics, and Policy); Global Health Institute, University of Wisconsin

RoyaltiesUpToDate

Editorial BoardsJournal of Travel Medicine

Global Mortality from 2009 Pandemic H1N1 Influenza

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Reviewing Author