Prospective hospital-based case–control study to assess the effectiveness of pandemic influenza A(H1N1)pdm09 vaccination and risk factors for hospitalization in 2009–2010 using matched hospital and test-negative controls
<p>Abstract</p> <p>Background</p> <p>We performed a case–control study to estimate vaccine effectiveness (VE) for prevention of hospitalization due to pandemic influenza A(H1N1)pdm09 (pH1N1) and to identify risk factors for pH1N1 and acute respiratory infection (ARI) in...
Main Authors: | , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2012-05-01
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Series: | BMC Infectious Diseases |
Subjects: | |
Online Access: | http://www.biomedcentral.com/1471-2334/12/127 |