Does Seasonal Influenza Vaccination Increase the Risk of Illness with the 2009 A/H1N1 Pandemic Virus?

Association between the 2008–09 Seasonal Influenza Vaccine and Pandemic H1N1 Illness during Spring–Summer 2009: Four Observational Studies from Canada

(2010) Danuta M. Skowronski et al.   PLOS MEDICINE

Notes from the Field: Outbreak of 2009 Pandemic Influenza A (H1N1) Virus at a Large Public University in Delaware, April–May 2009

(2009) A. Danielle Iuliano et al.   CLINICAL INFECTIOUS DISEASES

Infection and death from influenza A H1N1 virus in Mexico: a retrospective analysis

(2009) Santiago Echevarría-Zuno et al.   LANCET

Outbreak of 2009 Pandemic Influenza A (H1N1) at a New York City School

(2009) Justin Lessler et al.   NEW ENGLAND JOURNAL OF MEDICINE

The Signature Features of Influenza Pandemics — Implications for Policy

(2009) Mark A. Miller et al.   NEW ENGLAND JOURNAL OF MEDICINE

Cross-Reactive Antibody Responses to the 2009 Pandemic H1N1 Influenza Virus

(2009) Kathy Hancock et al.   NEW ENGLAND JOURNAL OF MEDICINE

Severe Respiratory Disease Concurrent with the Circulation of H1N1 Influenza

(2009) Gerardo Chowell et al.   NEW ENGLAND JOURNAL OF MEDICINE

Component‐Specific Effectiveness of Trivalent Influenza Vaccine as Monitored through a Sentinel Surveillance Network in Canada, 2006–2007

(2008) Danuta M. Skowronski et al.   JOURNAL OF INFECTIOUS DISEASES