Readiness for Responding to a Severe Pandemic 100 Years After 1918

Barbara Jester; Timothy Uyeki; Daniel Jernigan

Disclosures

Am J Epidemiol. 2018;187(12):2596-2602. 

In This Article

Abstract and Introduction

Abstract

The 1918 H1N1 pandemic caused an unprecedented number of deaths worldwide. The tools to deal with the global emergency were limited; there were insufficient surveillance systems and a dearth of diagnostic, treatment, and prevention options. With continuing focus on pandemic planning, technologic advances in surveillance, vaccine capabilities, and 21st century medical care and countermeasures, we are more prepared for a severe pandemic than people were 100 years ago; however, notable gaps remain.

Introduction

The 1918 influenza pandemic offers the worst-case planning scenario for public health officials because it resulted in unparalleled numbers of deaths. The virus, an A(H1N1) subtype, may have infected half the world's population[1,2] and caused at least 50 million deaths, according to estimates;[3] 675,000 deaths are thought to have occurred in the United States.[4] The source of the 1918 H1N1 virus is unknown; avian and swine origins have been proposed.[5,6] Although 3 later pandemics, in 1957, 1968, and 2009, resulted in much lower estimated rates of morbidity and death, the threat of a 1918-like severity pandemic remains, because reports of human infections with novel influenza A viruses (generally of avian or swine origin) that pose pandemic potential have increased in recent years. In particular, Asian lineage avian influenza A (H7N9) viruses caused 1,557 reported human infections and at least 605 deaths during 5 epidemics in China during 2013–2017.[7] Now, 100 years after the 1918 pandemic, is an important time to recall the significant impact of the pandemic and to reflect on the current state of readiness to respond to the next influenza pandemic.

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