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Article

Emergence of a novel swine-origin influenza A (H1N1) virus in humans.

The New England journal of medicine - 18 Jun 2009

Dawood Fatimah S, Jain Seema, Finelli Lyn, Shaw Michael W, Lindstrom Stephen, Garten Rebecca J, Gubareva Larisa V, Xu Xiyan, Bridges Carolyn B, Uyeki Timothy M

Abstract excerpt

BACKGROUND: On April 15 and April 17, 2009, novel swine-origin influenza A (H1N1) virus (S-OIV) was identified in specimens obtained from two epidemiologically unlinked patients in the United States. The same strain of the virus was identified in Mexico, Canada, and elsewhere. We describe 642 confirmed cases of human S-OIV infection identified from the rapidly evolving U.S. outbreak. METHODS: Enhanced...

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Identifiers

PMID: 19423869
DOI: 10.1056/NEJMoa0903810

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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